|
Abies guatemalensis |
Fir, Guatemalan (=pinabete) |
Conifers and Cycads |
Mexico, Guatemala, Honduras, El Salvador |
Pinaceae |
Threatened |
|
Abronia macrocarpa |
Sand-verbena, large-fruited |
Flowering Plants |
U.S.A. (TX) |
Nyctaginaceae |
Endangered |
|
Abutilon eremitopetalum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Abutilon menziesii |
Ko`oloa`ula |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Abutilon sandwicense |
No common name |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Acaena exigua |
Liliwai |
Flowering Plants |
U.S.A. (HI) |
Rosaceae |
Endangered |
|
Acanthomintha ilicifolia |
Thornmint, San Diego |
Flowering Plants |
U.S.A. (CA), Mexico |
Lamiaceae |
Threatened |
|
Acanthomintha obovata ssp. duttonii |
Thornmint, San Mateo |
Flowering Plants |
U.S.A. (CA) |
Lamiaceae |
Endangered |
|
Achyranthes mutica |
No common name |
Flowering Plants |
U.S.A. (HI) |
Amaranthaceae |
Endangered |
|
Achyranthes splendens var. rotundata |
Chaff-flower, round-leaved |
Flowering Plants |
U.S.A. (HI) |
Amaranthaceae |
Endangered |
|
Aconitum noveboracense |
Monkshood, northern wild |
Flowering Plants |
U.S.A. (IA, NY, OH, WI) |
Ranunculaceae |
Threatened |
|
Adenophorus periens |
Fern, pendant kihi |
Ferns and Allies |
U.S.A. (HI) |
Grammitidaceae |
Endangered |
|
Adiantum vivesii |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Adiantaceae |
Endangered |
|
Aeschynomene virginica |
Joint-vetch, sensitive |
Flowering Plants |
U.S.A. (DE, MD, NC, NJ, PA, VA) |
Fabaceae |
Threatened |
|
Agalinis acuta |
Gerardia, sandplain |
Flowering Plants |
U.S.A. (CT, MA, MD, NY, RI) |
Scrophulariaceae |
Endangered |
|
Alectryon macrococcus |
Mahoe |
Flowering Plants |
U.S.A. (HI) |
Sapindaceae |
Endangered |
|
Allium munzii |
Onion, Munz's |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Endangered |
|
Alopecurus aequalis var. sonomensis |
Alopecurus, Sonoma |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Alsinidendron lychnoides |
Kuawawaenohu |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Alsinidendron obovatum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Alsinidendron trinerve |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Alsinidendron viscosum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Amaranthus brownii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Amaranthaceae |
Endangered |
|
Amaranthus pumilus |
Amaranth, seabeach |
Flowering Plants |
U.S.A. (DE, MA, MD, NC, NJ, NY, RI, SC, VA) |
Amaranthaceae |
Threatened |
|
Ambrosia cheiranthifolia |
Ambrosia, south Texas |
Flowering Plants |
U.S.A. (TX) |
Asteraceae |
Endangered |
|
Ambrosia pumila |
Ambrosia, San Diego |
Flowering Plants |
U.S.A. (CA), Mexico |
Asteraceae |
Endangered |
|
Amorpha crenulata |
Lead-plant, Crenulate |
Flowering Plants |
U.S.A. (FL) |
Fabaceae |
Endangered |
|
Amphianthus pusillus |
Amphianthus, little |
Flowering Plants |
U.S.A. (AL, GA, SC) |
Scrophulariaceae |
Threatened |
|
Amsinckia grandiflora |
Fiddleneck, large-flowered |
Flowering Plants |
U.S.A. (CA) |
Boraginaceae |
Endangered |
|
Amsonia kearneyana |
Blue-star, Kearney's |
Flowering Plants |
U.S.A. (AZ) |
Apocynaceae |
Endangered |
|
Ancistrocactus tobuschii |
Cactus, Tobusch fishhook |
Flowering Plants |
U.S.A. (TX) |
Cactaceae |
Endangered |
|
Apios priceana |
Potato-bean, Price's |
Flowering Plants |
U.S.A. (AL, IL, KY, MS, TN) |
Fabaceae |
Threatened |
|
Arabis hoffmannii |
Rock-cress, Hoffmann's |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Arabis mcdonaldiana |
Rock-cress, McDonald's |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Arabis perstellata |
Rock-cress, Braun's |
Flowering Plants |
U.S.A. (KY,TN) |
Brassicaceae |
Endangered |
|
Arabis serotina |
Rock-cress, shale barren |
Flowering Plants |
U.S.A. (VA, WV) |
Brassicaceae |
Endangered |
|
Arctomecon humilis |
Bear-poppy, dwarf |
Flowering Plants |
U.S.A. (UT) |
Papaveraceae |
Endangered |
|
Arctostaphylos confertiflora |
Manzanita, Santa Rosa Island |
Flowering Plants |
U.S.A. (CA) |
Ericaceae |
Endangered |
|
Arctostaphylos glandulosa ssp. crassifolia |
Manzanita, Del Mar |
Flowering Plants |
U.S.A. (CA), Mexico. |
Ericaceae |
Endangered |
|
Arctostaphylos hookeri var. ravenii |
Manzanita, Presidio |
Flowering Plants |
U.S.A. (CA) |
Ericaceae |
Endangered |
|
Arctostaphylos morroensis |
Manzanita, Morro |
Flowering Plants |
U.S.A. (CA) |
Ericaceae |
Threatened |
|
Arctostaphylos myrtifolia |
Manzanita, Ione |
Flowering Plants |
U.S.A. (CA) |
Ericaceae |
Threatened |
|
Arctostaphylos pallida |
Manzanita, pallid |
Flowering Plants |
U.S.A. (CA) |
Ericaceae |
Threatened |
|
Arenaria cumberlandensis |
Sandwort, Cumberland |
Flowering Plants |
U.S.A. (KY, TN) |
Caryophyllaceae |
Endangered |
|
Arenaria paludicola |
Sandwort, Marsh |
Flowering Plants |
U.S.A. (CA) |
Caryophyllaceae |
Endangered |
|
Arenaria ursina |
Sandwort, Bear Valley |
Flowering Plants |
U.S.A. (CA) |
Caryophyllaceae |
Threatened |
|
Argemone pleiacantha ssp. pinnatisecta |
Poppy, Sacramento prickly |
Flowering Plants |
U.S.A. (NM) |
Papaveraceae |
Endangered |
|
Argyroxiphium kauense |
Silversword, Mauna Loa (=Ka'u) |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Argyroxiphium sandwicense ssp. macrocephalum |
`Ahinahina |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Threatened |
|
Argyroxiphium sandwicense ssp. sandwicense |
`Ahinahina |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Aristida chaseae |
No common name |
Flowering Plants |
U.S.A. (PR) |
Poaceae |
Endangered |
|
Aristida portoricensis |
Pelos del diablo |
Flowering Plants |
U.S.A. (PR) |
Poaceae |
Endangered |
|
Asclepias meadii |
Milkweed, Mead's |
Flowering Plants |
U.S.A. (IA, IL, IN, KS, MO, WI) |
Asclepiadaceae |
Threatened |
|
Asclepias welshii |
Milkweed, Welsh's |
Flowering Plants |
U.S.A. (AZ, UT) |
Asclepiadaceae |
Threatened |
|
Asimina tetramera |
Pawpaw, four-petal |
Flowering Plants |
U.S.A. (FL) |
Annonaceae |
Endangered |
|
Asplenium fragile var. insulare |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Asplenium scolopendrium var. americanum |
Fern, American hart's-tongue |
Ferns and Allies |
U.S.A. (AL, MI, NY, TN), Canada (Ont.) |
Aspleniaceae |
Threatened |
|
Astragalus albens |
Milk-vetch, Cushenbury |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus ampullarioides |
Milk-vetch, Shivwits |
Flowering Plants |
U.S.A. (UT) |
Fabaceae |
Endangered |
|
Astragalus applegatei |
Milk-vetch, Applegate's |
Flowering Plants |
U.S.A. (OR) |
Fabaceae |
Endangered |
|
Astragalus bibullatus |
Ground-plum, Guthrie's (=Pyne's) |
Flowering Plants |
U.S.A. (TN) |
Fabaceae |
Endangered |
|
Astragalus brauntonii |
Milk-vetch, Braunton's |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus clarianus |
Milk-vetch, Clara Hunt's |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus cremnophylax var. cremnophylax |
Milk-vetch, Sentry |
Flowering Plants |
U.S.A. (AZ) |
Fabaceae |
Endangered |
|
Astragalus desereticus |
Milk-vetch, Deseret |
Flowering Plants |
U.S.A. (UT) |
Fabaceae |
Threatened |
|
Astragalus holmgreniorum |
Milk-vetch, Holmgren |
Flowering Plants |
U.S.A. (AZ, UT) |
Fabaceae |
Endangered |
|
Astragalus humillimus |
Milk-vetch, Mancos |
Flowering Plants |
U.S.A. (CO, NM) |
Fabaceae |
Endangered |
|
Astragalus jaegerianus |
Milk-vetch, Lane Mountain |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus lentiginosus var. coachellae |
Milk-vetch, Coachella Valley |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus lentiginosus var. piscinensis |
Milk-vetch, Fish Slough |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Threatened |
|
Astragalus magdalenae var. peirsonii |
Milk-vetch, Peirson's |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Threatened |
|
Astragalus montii |
Milk-vetch, heliotrope |
Flowering Plants |
U.S.A. (UT) |
Fabaceae |
Threatened |
|
Astragalus osterhoutii |
Milk-vetch, Osterhout |
Flowering Plants |
U.S.A. (CO) |
Fabaceae |
Endangered |
|
Astragalus phoenix |
Milk-vetch, Ash meadows |
Flowering Plants |
U.S.A. (NV) |
Fabaceae |
Threatened |
|
Astragalus pycnostachyus var. lanosissimus |
Milk-vetch, Ventura Marsh |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus robbinsii var. jesupi |
Milk-vetch, Jesup's |
Flowering Plants |
U.S.A. (NH, VT) |
Fabaceae |
Endangered |
|
Astragalus tener var. titi |
Milk-vetch, coastal dunes |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astragalus tricarinatus |
Milk-vetch, triple-ribbed |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Astrophytum asterias |
Cactus, star |
Flowering Plants |
U.S.A. (TX), Mexico |
Cactaceae |
Endangered |
|
Atriplex coronata var. notatior |
Crownscale, San Jacinto Valley |
Flowering Plants |
U.S.A. (CA) |
Chenopodiaceae |
Endangered |
|
Auerodendron pauciflorum |
No common name |
Flowering Plants |
U.S.A. (PR) |
Rhamnaceae |
Endangered |
|
Ayenia limitaris |
Ayenia, Texas |
Flowering Plants |
U.S.A. (TX), Mexico |
Sterculiaceae |
Endangered |
|
Baccharis vanessae |
Baccharis, Encinitas |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Threatened |
|
Banara vanderbiltii |
Palo de ramon |
Flowering Plants |
U.S.A. (PR) |
Flacourtiaceae |
Endangered |
|
Baptisia arachnifera |
Rattleweed, hairy |
Flowering Plants |
U.S.A. (GA) |
Fabaceae |
Endangered |
|
Berberis nevinii |
Barberry, Nevin's |
Flowering Plants |
U.S.A. (CA) |
Berberidaceae |
Endangered |
|
Berberis pinnata ssp. insularis |
Barberry, island |
Flowering Plants |
U.S.A. (CA) |
Berberidaceae |
Endangered |
|
Betula uber |
Birch, Virginia round-leaf |
Flowering Plants |
U.S.A. (VA) |
Betulaceae |
Threatened |
|
Bidens micrantha ssp. kalealaha |
Ko`oko`olau |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Bidens wiebkei |
Ko`oko`olau |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Blennosperma bakeri |
Sunshine, Sonoma |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Boltonia decurrens |
Aster, decurrent false |
Flowering Plants |
U.S.A. (IL, MO) |
Asteraceae |
Threatened |
|
Bonamia grandiflora |
Bonamia, Florida |
Flowering Plants |
U.S.A. (FL) |
Convolvulaceae |
Threatened |
|
Bonamia menziesii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Convolvulaceae |
Endangered |
|
Brighamia insignis |
Olulu |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Brighamia rockii |
Pua `ala |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Brodiaea filifolia |
Brodiaea, thread-leaved |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Threatened |
|
Brodiaea pallida |
Brodiaea, Chinese Camp |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Threatened |
|
Buxus vahlii |
Boxwood, Vahl's |
Flowering Plants |
U.S.A. (PR, VI) |
Buxaceae |
Endangered |
|
Caesalpinia kavaiense |
Uhiuhi |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Callicarpa ampla |
Capa rosa |
Flowering Plants |
U.S.A. (PR) |
Verbenaceae |
Endangered |
|
Callirhoe scabriuscula |
Poppy-mallow, Texas |
Flowering Plants |
U.S.A. (TX) |
Malvaceae |
Endangered |
|
Calochortus tiburonensis |
Mariposa lily, Tiburon |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Threatened |
|
Calyptranthes thomasiana |
No common name |
Flowering Plants |
U.S.A. (PR, VI) British VI |
Myrtaceae |
Endangered |
|
Calyptridium pulchellum |
Pussypaws, Mariposa |
Flowering Plants |
U.S.A. (CA) |
Portulacaceae |
Threatened |
|
Calyptronoma rivalis |
Manaca, palma de |
Flowering Plants |
U.S.A. (PR) |
Arecaceae |
Threatened |
|
Calystegia stebbinsii |
Morning-glory, Stebbins' |
Flowering Plants |
U.S.A. (CA) |
Convolvulaceae |
Endangered |
|
Camissonia benitensis |
Evening-primrose, San Benito |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Threatened |
|
Campanula robinsiae |
Bellflower, Brooksville |
Flowering Plants |
U.S.A. (FL) |
Campanulaceae |
Endangered |
|
Canavalia molokaiensis |
`Awikiwiki |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Cardamine micranthera |
Bittercress, small-anthered |
Flowering Plants |
U.S.A. (NC, VA) |
Brassicaceae |
Endangered |
|
Carex albida |
Sedge, white |
Flowering Plants |
U.S.A. (CA) |
Cyperaceae |
Endangered |
|
Carex lutea |
Sedge, golden |
Flowering Plants |
U.S.A. (NC) |
Cyperaceae |
Endangered |
|
Carex specuicola |
Sedge, Navajo |
Flowering Plants |
U.S.A. (AZ, UT) |
Cyperaceae |
Threatened |
|
Castilleja affinis ssp. neglecta |
Paintbrush, Tiburon |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Castilleja campestris ssp. succulenta |
Owl's-clover, fleshy |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Threatened |
|
Castilleja cinerea |
Paintbrush, ash-grey |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Threatened |
|
Castilleja grisea |
Indian paintbrush, San Clemente Island |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Castilleja levisecta |
Paintbrush, golden |
Flowering Plants |
U.S.A. (OR, WA), Canada (B.C.) |
Scrophulariaceae |
Threatened |
|
Castilleja mollis |
Paintbrush, soft-leaved |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Catesbaea melanocarpa |
No common name |
Flowering Plants |
U.S.A. (PR, VI), Antigua, Barbuda, Guadalupe |
Rubiaceae |
Endangered |
|
Caulanthus californicus |
Jewelflower, California |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Ceanothus ferrisae |
Ceanothus, coyote |
Flowering Plants |
U.S.A. (CA) |
Rhamnaceae |
Endangered |
|
Ceanothus ophiochilus |
Ceanothus, Vail Lake |
Flowering Plants |
U.S.A. (CA) |
Rhamnaceae |
Threatened |
|
Ceanothus roderickii |
Ceanothus, Pine Hill |
Flowering Plants |
U.S.A. (CA) |
Rhamnaceae |
Endangered |
|
Cenchrus agrimonioides |
Kamanomano |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Centaurium namophilum |
Centaury, spring-loving |
Flowering Plants |
U.S.A. (CA, NV) |
Gentianaceae |
Threatened |
|
Centaurium sebaeoides |
Awiwi |
Flowering Plants |
U.S.A. (HI) |
Gentianaceae |
Endangered |
|
Cercocarpus traskiae |
Mountain-mahogany, Catalina Island |
Flowering Plants |
U.S.A. (CA) |
Rosaceae |
Endangered |
|
Cereus eriophorus var. fragrans |
Prickly-apple, fragrant |
Flowering Plants |
U.S.A. (FL) |
Cactaceae |
Endangered |
|
Chamaecrista glandulosa var. mirabilis |
No common name |
Flowering Plants |
U.S.A. (PR) |
Fabaceae |
Endangered |
|
Chamaesyce celastroides var. kaenana |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce deltoidea ssp. deltoidea |
Spurge, deltoid |
Flowering Plants |
U.S.A. (FL) |
Euphorbiaceae |
Endangered |
|
Chamaesyce deppeana |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce garberi |
Spurge, Garber's |
Flowering Plants |
U.S.A. (FL) |
Euphorbiaceae |
Threatened |
|
Chamaesyce halemanui |
No common name |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce herbstii |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce hooveri |
Spurge, Hoover's |
Flowering Plants |
U.S.A. (CA) |
Euphorbiaceae |
Threatened |
|
Chamaesyce kuwaleana |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce rockii |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chamaesyce skottsbergii var. kalaeloana |
`Akoko, Ewa Plains |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Chionanthus pygmaeus |
Fringe-tree, pygmy |
Flowering Plants |
U.S.A. (FL) |
Oleaceae |
Endangered |
|
Chlorogalum purpureum |
Amole, purple |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Threatened |
|
Chorizanthe howellii |
Spineflower, Howell's |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Chorizanthe orcuttiana |
Spineflower, Orcutt's |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Chorizanthe pungens var. hartwegiana |
Spineflower, Ben Lomond |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Chorizanthe pungens var. pungens |
Spineflower, Monterey |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Threatened |
|
Chorizanthe robusta (incl. vars. robusta and hartwegii) |
Spineflower, Robust (incl. Scotts Valley) |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Chorizanthe valida |
Spineflower, Sonoma |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Chrysopsis floridana |
Aster, Florida golden |
Flowering Plants |
U.S.A. (FL) |
Asteraceae |
Endangered |
|
Cirsium fontinale var. fontinale |
Thistle, fountain |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Cirsium fontinale var. obispoense |
Thistle, Chorro Creek bog |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Cirsium hydrophilum var. hydrophilum |
Thistle, Suisun |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Cirsium loncholepis |
Thistle, La Graciosa |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Cirsium pitcheri |
Thistle, Pitcher's |
Flowering Plants |
U.S.A. (IL, IN, MI, WI), Canada (Ont.) |
Asteraceae |
Threatened |
|
Cirsium vinaceum |
Thistle, Sacramento Mountains |
Flowering Plants |
U.S.A. (NM) |
Asteraceae |
Threatened |
|
Cladonia perforata |
Cladonia, Florida perforate |
Lichens |
U.S.A. (FL) |
Cladoniaceae |
Endangered |
|
Clarkia franciscana |
Clarkia, Presidio |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Endangered |
|
Clarkia imbricata |
Clarkia, Vine Hill |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Endangered |
|
Clarkia speciosa ssp. immaculata |
Clarkia, Pismo |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Endangered |
|
Clarkia springvillensis |
Clarkia, Springville |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Threatened |
|
Clematis morefieldii |
Leather flower, Morefield's |
Flowering Plants |
U.S.A. (AL) |
Ranunculaceae |
Endangered |
|
Clematis socialis |
Leather flower, Alabama |
Flowering Plants |
U.S.A. (AL) |
Ranunculaceae |
Endangered |
|
Clermontia drepanomorpha |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia lindseyana |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia oblongifolia ssp. brevipes |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia oblongifolia ssp. mauiensis |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia peleana |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia pyrularia |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clermontia samuelii |
`Oha wai |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Clitoria fragrans |
Pigeon wings |
Flowering Plants |
U.S.A. (FL) |
Fabaceae |
Threatened |
|
Colubrina oppositifolia |
Kauila |
Flowering Plants |
U.S.A. (HI) |
Rhamnaceae |
Endangered |
|
Conradina brevifolia |
Rosemary, short-leaved |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Conradina etonia |
Rosemary, Etonia |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Conradina glabra |
Rosemary, Apalachicola |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Conradina verticillata |
Rosemary, Cumberland |
Flowering Plants |
U.S.A. (KY, TN) |
Lamiaceae |
Threatened |
|
Cordia bellonis |
No common name |
Flowering Plants |
U.S.A. (PR) |
Boraginaceae |
Endangered |
|
Cordylanthus maritimus ssp. maritimus |
Bird's-beak, salt marsh |
Flowering Plants |
U.S.A. (CA), Mexico (Baja California) |
Scrophulariaceae |
Endangered |
|
Cordylanthus mollis ssp. mollis |
Bird's-beak, soft |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Cordylanthus palmatus |
Bird's beak, palmate-bracted |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Cordylanthus tenuis ssp. capillaris |
Bird's-beak, Pennell's |
Flowering Plants |
U.S.A. (CA) |
Scrophulariaceae |
Endangered |
|
Cornutia obovata |
Palo de nigua |
Flowering Plants |
U.S.A. (PR) |
Verbenaceae |
Endangered |
|
Coryphantha minima |
Cactus, Nellie cory |
Flowering Plants |
U.S.A. (TX) |
Cactaceae |
Endangered |
|
Coryphantha ramillosa |
Cory cactus, bunched |
Flowering Plants |
U.S.A. (TX), Mexico (Coahuila) |
Cactaceae |
Threatened |
|
Coryphantha robbinsorum |
Cactus, Cochise pincushion |
Flowering Plants |
U.S.A. (AZ), Mexico (Sonora) |
Cactaceae |
Threatened |
|
Coryphantha scheeri var. robustispina |
Cactus, Pima pineapple |
Flowering Plants |
U.S.A. (AZ), Mexico (Sonora) |
Cactaceae |
Endangered |
|
Coryphantha sneedii var. leei |
Cactus, Lee pincushion |
Flowering Plants |
U.S.A. (NM) |
Cactaceae |
Threatened |
|
Coryphantha sneedii var. sneedii |
Cactus, Sneed pincushion |
Flowering Plants |
U.S.A. (NM, TX) |
Cactaceae |
Endangered |
|
Cranichis ricartii |
No common name |
Flowering Plants |
U.S.A. (PR) |
Orchidaceae |
Endangered |
|
Crescentia portoricensis |
Higuero de sierra |
Flowering Plants |
U.S.A. (PR) |
Bignoniaceae |
Endangered |
|
Crotalaria avonensis |
Harebells, Avon Park |
Flowering Plants |
U.S.A. (FL) |
Fabaceae |
Endangered |
|
Cryptantha crassipes |
Cat's-eye, Terlingua Creek |
Flowering Plants |
U.S.A. (TX) |
Boraginaceae |
Endangered |
|
Ctenitis squamigera |
Pauoa |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Cucurbita okeechobeensis ssp. okeechobeensis |
Gourd, Okeechobee |
Flowering Plants |
U.S.A. (FL) |
Cucurbitaceae |
Endangered |
|
Cupressus abramsiana |
Cypress, Santa Cruz |
Conifers and Cycads |
U.S.A. (CA) |
Cupressaceae |
Endangered |
|
Cupressus goveniana ssp. goveniana |
Cypress, Gowen |
Conifers and Cycads |
U.S.A. (CA) |
Cupressaceae |
Threatened |
|
Cyanea (=Rollandia) crispa |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea acuminata |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea asarifolia |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea copelandii ssp. copelandii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea copelandii ssp. haleakalaensis |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea dunbarii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea glabra |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea grimesiana ssp. grimesiana |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea grimesiana ssp. obatae |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea hamatiflora ssp. carlsonii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea hamatiflora ssp. hamatiflora |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea humboldtiana |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea koolauensis |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea lobata |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea longiflora |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea macrostegia ssp. gibsonii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea mannii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea mceldowneyi |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea pinnatifida |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea platyphylla |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea procera |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea recta |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Threatened |
|
Cyanea remyi |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea shipmanii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea st.-johnii |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea stictophylla |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea superba |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea truncata |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyanea undulata |
Haha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Cyathea dryopteroides |
Fern, Elfin tree |
Ferns and Allies |
U.S.A. (PR) |
Cyatheaceae |
Endangered |
|
Cycladenia jonesii (=humilis) |
Cycladenia, Jones |
Flowering Plants |
U.S.A. (AZ, UT) |
Apocynaceae |
Threatened |
|
Cyperus trachysanthos |
Pu`uka`a |
Flowering Plants |
U.S.A. (HI) |
Cyperaceae |
Endangered |
|
Cyrtandra crenata |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra cyaneoides |
Mapele |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra dentata |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra giffardii |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra limahuliensis |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Threatened |
|
Cyrtandra munroi |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra polyantha |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra subumbellata |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra tintinnabula |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Cyrtandra viridiflora |
Ha`iwale |
Flowering Plants |
U.S.A. (HI) |
Gesneriaceae |
Endangered |
|
Dalea foliosa |
Prairie-clover, leafy |
Flowering Plants |
U.S.A. (AL, IL, TN) |
Fabaceae |
Endangered |
|
Daphnopsis hellerana |
No common name |
Flowering Plants |
U.S.A. (PR) |
Thymelaeaceae |
Endangered |
|
Deeringothamnus pulchellus |
Pawpaw, beautiful |
Flowering Plants |
U.S.A. (FL) |
Annonaceae |
Endangered |
|
Deeringothamnus rugelii |
Pawpaw, Rugel's |
Flowering Plants |
U.S.A. (FL) |
Annonaceae |
Endangered |
|
Deinandra (=Hemizonia) conjugens |
Tarplant, Otay |
Flowering Plants |
U.S.A. (CA), Mexico |
Asteraceae |
Threatened |
|
Deinandra increscens ssp. villosa |
Tarplant, Gaviota |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Delissea rhytidosperma |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Delissea rivularis |
Oha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Delissea subcordata |
Oha |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Delissea undulata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Delphinium bakeri |
Larkspur, Baker's |
Flowering Plants |
U.S.A. (CA) |
Ranunculaceae |
Endangered |
|
Delphinium luteum |
Larkspur, yellow |
Flowering Plants |
U.S.A. (CA) |
Ranunculaceae |
Endangered |
|
Delphinium variegatum ssp. kinkiense |
Larkspur, San Clemente Island |
Flowering Plants |
U.S.A. (CA) |
Ranunculaceae |
Endangered |
|
Dicerandra christmanii |
Mint, Garrett's |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Dicerandra cornutissima |
Mint, longspurred |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Dicerandra frutescens |
Mint, scrub |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Dicerandra immaculata |
Mint, Lakela's |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Endangered |
|
Diellia erecta |
Diellia, asplenium-leaved |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Diellia falcata |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Diellia pallida |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Diellia unisora |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Diplazium molokaiense |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Aspleniaceae |
Endangered |
|
Dodecahema leptoceras |
Spineflower, slender-horned |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Dubautia herbstobatae |
Na`ena`e |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Dubautia latifolia |
Na`ena`e |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Dubautia pauciflorula |
Na`ena`e |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Dubautia plantaginea ssp. humilis |
Na`ena`e |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Dudleya abramsii ssp. parva |
Dudleya, Conejo |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Dudleya cymosa ssp. marcescens |
Dudleya, marcescent |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Dudleya cymosa ssp. ovatifolia |
Dudleyea, Santa Monica Mountains |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Dudleya nesiotica |
Dudleya, Santa Cruz Island |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Dudleya setchellii |
Dudleya, Santa Clara Valley |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Endangered |
|
Dudleya stolonifera |
Liveforever, Laguna Beach |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Dudleya traskiae |
Liveforever, Santa Barbara Island |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Endangered |
|
Dudleya verityi |
Dudleya, Verity's |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Threatened |
|
Echinacea laevigata |
Coneflower, smooth |
Flowering Plants |
U.S.A. (GA, MD, NC, PA, SC, VA) |
Asteraceae |
Endangered |
|
Echinacea tennesseensis |
Coneflower, Tennessee purple |
Flowering Plants |
U.S.A. (TN) |
Asteraceae |
Endangered |
|
Echinocactus horizonthalonius var. nicholii |
Cactus, Nichol's Turk's head |
Flowering Plants |
U.S.A. (AZ) |
Cactaceae |
Endangered |
|
Echinocereus chisoensis var. chisoensis |
Cactus, Chisos Mountain hedgehog |
Flowering Plants |
U.S.A. (TX) |
Cactaceae |
Threatened |
|
Echinocereus fendleri var. kuenzleri |
Cactus, Kuenzler hedgehog |
Flowering Plants |
U.S.A. (NM) |
Cactaceae |
Endangered |
|
Echinocereus reichenbachii var. albertii |
Cactus, black lace |
Flowering Plants |
U.S.A. (TX) |
Cactaceae |
Endangered |
|
Echinocereus triglochidiatus var. arizonicus |
Cactus, Arizona hedgehog |
Flowering Plants |
U.S.A. (AZ) |
Cactaceae |
Endangered |
|
Echinocereus viridiflorus var. davisii |
Pitaya, Davis' green |
Flowering Plants |
U.S.A. (TX) |
Cactaceae |
Endangered |
|
Echinomastus mariposensis |
Cactus, Lloyd's Mariposa |
Flowering Plants |
U.S.A. (TX), Mexico (Coahuila) |
Cactaceae |
Threatened |
|
Elaphoglossum serpens |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Lomariopsidaceae |
Endangered |
|
Enceliopsis nudicaulis var. corrugata |
Sunray, Ash Meadows |
Flowering Plants |
U.S.A. (NV) |
Asteraceae |
Threatened |
|
Eragrostis fosbergii |
Love grass, Fosberg's |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Eremalche kernensis |
Mallow, Kern |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Eriastrum densifolium ssp. sanctorum |
Woolly-star, Santa Ana River |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Erigeron decumbens var. decumbens |
Daisy, Willamette |
Flowering Plants |
U.S.A. (OR) |
Asteraceae |
Endangered |
|
Erigeron maguirei |
Daisy, Maguire |
Flowering Plants |
U.S.A. (UT) |
Asteraceae |
Threatened |
|
Erigeron parishii |
Daisy, Parish's |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Threatened |
|
Erigeron rhizomatus |
Fleabane, Zuni |
Flowering Plants |
U.S.A. (NM) |
Asteraceae |
Threatened |
|
Eriodictyon altissimum |
Mountain balm, Indian Knob |
Flowering Plants |
U.S.A. (CA) |
Hydrophyllaceae |
Endangered |
|
Eriodictyon capitatum |
Yerba santa, Lompoc |
Flowering Plants |
U.S.A. (CA) |
Hydrophyllaceae |
Endangered |
|
Eriogonum apricum (incl. var. prostratum) |
Buckwheat, Ione (incl. Irish Hill) |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Eriogonum gypsophilum |
Wild-buckwheat, gypsum |
Flowering Plants |
U.S.A. (NM) |
Polygonaceae |
Threatened |
|
Eriogonum kennedyi var. austromontanum |
Wild-buckwheat, southern mountain |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Threatened |
|
Eriogonum longifolium var. gnaphalifolium |
Buckwheat, scrub |
Flowering Plants |
U.S.A. (FL) |
Polygonaceae |
Threatened |
|
Eriogonum ovalifolium var. vineum |
Buckwheat, cushenbury |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Eriogonum ovalifolium var. williamsiae |
Buckwheat, steamboat |
Flowering Plants |
U.S.A. (NV) |
Polygonaceae |
Endangered |
|
Eriogonum pelinophilum |
Wild-buckwheat, clay-loving |
Flowering Plants |
U.S.A. (CO) |
Polygonaceae |
Endangered |
|
Eriophyllum latilobum |
Sunflower, San Mateo woolly |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Eryngium aristulatum var. parishii |
Button-celery, San Diego |
Flowering Plants |
U.S.A. (CA) |
Apiaceae |
Endangered |
|
Eryngium constancei |
Thistle, Loch Lomond coyote |
Flowering Plants |
U.S.A. (CA) |
Apiaceae |
Endangered |
|
Eryngium cuneifolium |
Snakeroot |
Flowering Plants |
U.S.A. (FL) |
Apiaceae |
Endangered |
|
Erysimum capitatum var. angustatum |
Wallflower, Contra Costa |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Erysimum menziesii |
Wallflower, Menzies' |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Erysimum teretifolium |
Wallflower, Ben Lomond |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Erythronium propullans |
Lily, Minnesota dwarf trout |
Flowering Plants |
U.S.A. (MN) |
Liliaceae |
Endangered |
|
Eugenia haematocarpa |
Uvillo |
Flowering Plants |
U.S.A. (PR) |
Myrtaceae |
Endangered |
|
Eugenia koolauensis |
Nioi |
Flowering Plants |
U.S.A. (HI) |
Myrtaceae |
Endangered |
|
Eugenia woodburyana |
No common name |
Flowering Plants |
U.S.A. (PR) |
Myrtaceae |
Endangered |
|
Euphorbia haeleeleana |
`Akoko |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Euphorbia telephioides |
Spurge, telephus |
Flowering Plants |
U.S.A. (FL) |
Euphorbiaceae |
Threatened |
|
Eutrema penlandii |
Mustard, Penland alpine fen |
Flowering Plants |
U.S.A. (CO) |
Brassicaceae |
Threatened |
|
Exocarpos luteolus |
Heau |
Flowering Plants |
U.S.A. (HI) |
Santalaceae |
Endangered |
|
Fitzroya cupressoides |
Larch, Chilean false |
Conifers and Cycads |
Chile, Argentina |
Cupressaceae |
Threatened |
|
Flueggea neowawraea |
Mehamehame |
Flowering Plants |
U.S.A. (HI) |
Euphorbiaceae |
Endangered |
|
Frankenia johnstonii |
Frankenia, Johnston's |
Flowering Plants |
U.S.A. (TX), Mexico (Nuevo Leon) |
Frankeniaceae |
Endangered |
|
Fremontodendron californicum ssp. decumbens |
Flannelbush, Pine Hill |
Flowering Plants |
U.S.A. (CA) |
Sterculiaceae |
Endangered |
|
Fremontodendron mexicanum |
Flannelbush, Mexican |
Flowering Plants |
U.S.A. (CA), Mexico |
Sterculiaceae |
Endangered |
|
Fritillaria gentneri |
Fritillary, Gentner's |
Flowering Plants |
U.S.A. (OR) |
Liliaceae |
Endangered |
|
Gahnia lanaiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Cyperaceae |
Endangered |
|
Galactia smallii |
Milkpea, Small's |
Flowering Plants |
U.S.A. (FL) |
Fabaceae |
Endangered |
|
Galium buxifolium |
Bedstraw, island |
Flowering Plants |
U.S.A. (CA) |
Rubiaceae |
Endangered |
|
Galium californicum ssp. sierrae |
Bedstraw, El Dorado |
Flowering Plants |
U.S.A. (CA) |
Rubiaceae |
Endangered |
|
Gardenia brighamii |
Gardenia (=Na`u), Hawaiian |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Gardenia mannii |
Nanu |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Gaura neomexicana var. coloradensis |
Butterfly plant, Colorado |
Flowering Plants |
U.S.A. (CO, NE, WY) |
Onagraceae |
Threatened |
|
Geocarpon minimum |
No common name |
Flowering Plants |
U.S.A. (AR, LA, MO) |
Caryophyllaceae |
Threatened |
|
Geranium arboreum |
Geranium, Hawaiian red-flowered |
Flowering Plants |
U.S.A. (HI) |
Geraniaceae |
Endangered |
|
Geranium multiflorum |
Nohoanu |
Flowering Plants |
U.S.A. (HI) |
Geraniaceae |
Endangered |
|
Gesneria pauciflora |
No common name |
Flowering Plants |
U.S.A. (PR) |
Gesneriaceae |
Threatened |
|
Geum radiatum |
Avens, spreading |
Flowering Plants |
U.S.A. (NC, TN) |
Rosaceae |
Endangered |
|
Gilia tenuiflora ssp. arenaria |
Gilia, Monterey |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Gilia tenuiflora ssp. hoffmannii |
Gilia, Hoffmann's slender-flowered |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Goetzea elegans |
Goetzea, beautiful |
Flowering Plants |
U.S.A. (PR) |
Solanaceae |
Endangered |
|
Gouania hillebrandii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Rhamnaceae |
Endangered |
|
Gouania meyenii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Rhamnaceae |
Endangered |
|
Gouania vitifolia |
No common name |
Flowering Plants |
U.S.A. (HI) |
Rhamnaceae |
Endangered |
|
Grindelia fraxino-pratensis |
Gumplant, Ash Meadows |
Flowering Plants |
U.S.A. (CA, NV) |
Asteraceae |
Threatened |
|
Gymnoderma lineare |
Lichen, rock gnome |
Lichens |
U.S.A. (NC,TN) |
Cladoniaceae |
Endangered |
|
Hackelia venusta |
Stickseed, showy |
Flowering Plants |
U.S.A. (WA) |
Boraginaceae |
Endangered |
|
Halophila johnsonii |
Seagrass, Johnson's |
Flowering Plants |
U.S.A. (FL) |
Hydrocharitaceae |
Threatened |
|
Haplostachys haplostachya |
Honohono |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Harperocallis flava |
Beauty, Harper's |
Flowering Plants |
U.S.A. (FL) |
Liliaceae |
Endangered |
|
Harrisia portoricensis |
Chumbo, Higo |
Flowering Plants |
U.S.A. (PR) |
Cactaceae |
Threatened |
|
Hedeoma todsenii |
Pennyroyal, Todsen's |
Flowering Plants |
U.S.A. (NM) |
Lamiaceae |
Endangered |
|
Hedyotis cookiana |
Awiwi |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis coriacea |
Kio`ele |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis degeneri |
No common name |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis mannii |
Pilo |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis parvula |
No common name |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis purpurea var. montana |
Bluet, Roan Mountain |
Flowering Plants |
U.S.A. (NC, TN) |
Rubiaceae |
Endangered |
|
Hedyotis schlechtendahliana var. remyi |
Kopa |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Hedyotis st.-johnii |
Hedyotis, Na Pali beach |
Flowering Plants |
U.S.A. (HI) |
Rubiaceae |
Endangered |
|
Helenium virginicum |
Sneezeweed, Virginia |
Flowering Plants |
U.S.A. (MO, VA) |
Asteraceae |
Threatened |
|
Helianthemum greenei |
Rush-rose, island |
Flowering Plants |
U.S.A. (CA) |
Cistaceae |
Threatened |
|
Helianthus paradoxus |
Sunflower, Pecos (=puzzle, =paradox) |
Flowering Plants |
U.S.A. (NM, TX) |
Asteraceae |
Threatened |
|
Helianthus schweinitzii |
Sunflower, Schweinitz's |
Flowering Plants |
U.S.A. (NC, SC) |
Asteraceae |
Endangered |
|
Helonias bullata |
Pink, swamp |
Flowering Plants |
U.S.A. (DE, GA, MD, NC, NJ, NY, SC, VA) |
Liliaceae |
Threatened |
|
Hesperolinon congestum |
Dwarf-flax, Marin |
Flowering Plants |
U.S.A. (CA) |
Linaceae |
Threatened |
|
Hesperomannia arborescens |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Hesperomannia arbuscula |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Hesperomannia lydgatei |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Hexastylis naniflora |
Heartleaf, dwarf-flowered |
Flowering Plants |
U.S.A. (NC, SC) |
Aristolochiaceae |
Threatened |
|
Hibiscadelphus distans |
Kauai hau kuahiwi |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscadelphus giffardianus |
Hau kuahiwi |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscadelphus hualalaiensis |
Hau kuahiwi |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscadelphus woodii |
Hau kuahiwi |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscus arnottianus ssp. immaculatus |
Koki`o ke`oke`o |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscus brackenridgei |
Ma`o hau hele, (=native yellow hibiscus) |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscus clayi |
Hibiscus, Clay's |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hibiscus waimeae ssp. hannerae |
Koki`o ke`oke`o |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Hoffmannseggia tenella |
Rush-pea, slender |
Flowering Plants |
U.S.A. (TX) |
Fabaceae |
Endangered |
|
Holocarpha macradenia |
Tarplant, Santa Cruz |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Threatened |
|
Howellia aquatilis |
Howellia, water |
Flowering Plants |
U.S.A. (CA, ID, MT, OR, WA) |
Campanulaceae |
Threatened |
|
Hudsonia montana |
Heather, mountain golden |
Flowering Plants |
U.S.A. (NC) |
Cistaceae |
Threatened |
|
Huperzia mannii |
Wawae`iole |
Ferns and Allies |
U.S.A. (HI) |
Lycopodiaceae |
Endangered |
|
Hymenoxys herbacea |
Daisy, lakeside |
Flowering Plants |
U.S.A. (IL, MI, OH), Canada (Ont.) |
Asteraceae |
Threatened |
|
Hymenoxys texana |
Dawn-flower, Texas prairie |
Flowering Plants |
U.S.A. (TX) |
Asteraceae |
Endangered |
|
Hypericum cumulicola |
Hypericum, highlands scrub |
Flowering Plants |
U.S.A. (FL) |
Hypericaceae |
Endangered |
|
Ilex cookii |
Holly, Cook's |
Flowering Plants |
U.S.A. (PR) |
Aquifoliaceae |
Endangered |
|
Ilex sintenisii |
No common name |
Flowering Plants |
U.S.A. (PR) |
Aquifoliaceae |
Endangered |
|
Iliamna corei |
Mallow, Peter's Mountain |
Flowering Plants |
U.S.A. (VA) |
Malvaceae |
Endangered |
|
Ipomopsis sancti-spiritus |
Ipomopsis, Holy Ghost |
Flowering Plants |
U.S.A. (NM) |
Polemoniaceae |
Endangered |
|
Iris lacustris |
Iris, dwarf lake |
Flowering Plants |
U.S.A. (MI, WI), Canada (Ont.) |
Iridaceae |
Threatened |
|
Ischaemum byrone |
Ischaemum, Hilo |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Isodendrion hosakae |
Aupaka |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Isodendrion laurifolium |
Aupaka |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Isodendrion longifolium |
Aupaka |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Threatened |
|
Isodendrion pyrifolium |
Kula wahine noho |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Isoetes louisianensis |
Quillwort, Louisiana |
Ferns and Allies |
U.S.A. (LA, MS) |
Isoetaceae |
Endangered |
|
Isoetes melanospora |
Quillwort, black spored |
Ferns and Allies |
U.S.A. (GA, SC) |
Isoetaceae |
Endangered |
|
Isoetes tegetiformans |
Quillwort, mat-forming |
Ferns and Allies |
U.S.A. (GA) |
Isoetaceae |
Endangered |
|
Isotria medeoloides |
Pogonia, small whorled |
Flowering Plants |
U.S.A. (CT, DC, DE, GA, IL, MA, MD, ME, MI, MO, NC, NH, NJ, NY, PA, RI, SC, TN, VA, VT,WV), Canada (Ont.) |
Orchidaceae |
Threatened |
|
Ivesia kingii var. eremica |
Ivesia, Ash Meadows |
Flowering Plants |
U.S.A. (NV) |
Rosaceae |
Threatened |
|
Jacquemontia reclinata |
Jacquemontia, beach |
Flowering Plants |
U.S.A. (FL) |
Convolvulaceae |
Endangered |
|
Jatropha costaricensis |
Jatropha, Costa Rican |
Flowering Plants |
Costa Rica |
Euphorbiaceae |
Endangered |
|
Juglans jamaicensis |
Walnut (=Nogal), West Indian |
Flowering Plants |
U.S.A. (PR), Cuba, Hispaniola |
Juglandaceae |
Endangered |
|
Justicia cooleyi |
Water-willow, Cooley's |
Flowering Plants |
U.S.A. (FL) |
Acanthaceae |
Endangered |
|
Kanaloa kahoolawensis |
Kohe malama malama o kanaloa |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Kokia cookei |
Koki`o, Cooke's |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Kokia drynarioides |
Koki`o |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Kokia kauaiensis |
Koki`o |
Flowering Plants |
U.S.A. (HI) |
Malvaceae |
Endangered |
|
Labordia cyrtandrae |
Kamakahala |
Flowering Plants |
U.S.A. (HI) |
Loganiaceae |
Endangered |
|
Labordia lydgatei |
Kamakahala |
Flowering Plants |
U.S.A. (HI) |
Loganiaceae |
Endangered |
|
Labordia tinifolia var. lanaiensis |
Kamakahala |
Flowering Plants |
U.S.A. (HI) |
Loganiaceae |
Endangered |
|
Labordia tinifolia var. wahiawaensis |
Kamakahala |
Flowering Plants |
U.S.A. (HI) |
Loganiaceae |
Endangered |
|
Labordia triflora |
Kamakahala |
Flowering Plants |
U.S.A. (HI) |
Loganiaceae |
Endangered |
|
Lasthenia burkei |
Goldfields, Burke's |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Lasthenia conjugens |
Goldfields, Contra Costa |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Layia carnosa |
Layia, beach |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Lepanthes eltoroensis |
No common name |
Flowering Plants |
U.S.A. (PR) |
Orchidaceae |
Endangered |
|
Lepidium arbuscula |
`Anaunau |
Flowering Plants |
U.S.A. (HI) |
Brassicaceae |
Endangered |
|
Lepidium barnebyanum |
Ridge-cress, Barneby |
Flowering Plants |
U.S.A. (UT) |
Brassicaceae |
Endangered |
|
Leptocereus grantianus |
No common name |
Flowering Plants |
U.S.A. (PR) |
Cactaceae |
Endangered |
|
Lespedeza leptostachya |
Bush-clover, prairie |
Flowering Plants |
U.S.A. (IA, IL, MN, WI) |
Fabaceae |
Threatened |
|
Lesquerella congesta |
Bladderpod, Dudley Bluffs |
Flowering Plants |
U.S.A. (CO) |
Brassicaceae |
Threatened |
|
Lesquerella filiformis |
Bladderpod, Missouri |
Flowering Plants |
U.S.A. (AR, MO) |
Brassicaceae |
Threatened |
|
Lesquerella kingii ssp. bernardina |
Bladderpod, San Bernardino Mountains |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Lesquerella lyrata |
Bladderpod, lyrate |
Flowering Plants |
U.S.A. (AL) |
Brassicaceae |
Threatened |
|
Lesquerella pallida |
Bladderpod, white |
Flowering Plants |
U.S.A. (TX) |
Brassicaceae |
Endangered |
|
Lesquerella perforata |
Bladderpod, Spring Creek |
Flowering Plants |
U.S.A. (TN) |
Brassicaceae |
Endangered |
|
Lesquerella thamnophila |
Bladderpod, Zapata |
Flowering Plants |
U.S.A. (TX) |
Brassicaceae |
Endangered |
|
Lesquerella tumulosa |
Bladderpod, kodachrome |
Flowering Plants |
U.S.A. (UT) |
Brassicaceae |
Endangered |
|
Lessingia germanorum (=L.g. var. germanorum) |
Lessingia, San Francisco |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Liatris helleri |
Blazingstar, Heller's |
Flowering Plants |
U.S.A. (NC) |
Asteraceae |
Threatened |
|
Liatris ohlingerae |
Blazingstar, scrub |
Flowering Plants |
U.S.A. (FL) |
Asteraceae |
Endangered |
|
Lilaeopsis schaffneriana var. recurva |
Water-umbel, Huachuca |
Flowering Plants |
U.S.A. (AZ), Mexico |
Apiaceae |
Endangered |
|
Lilium occidentale |
Lily, Western |
Flowering Plants |
U.S.A. (OR, CA) |
Liliaceae |
Endangered |
|
Lilium pardalinum ssp. pitkinense |
Lily, Pitkin Marsh |
Flowering Plants |
U.S.A. (CA) |
Liliaceae |
Endangered |
|
Limnanthes floccosa ssp. californica |
Meadowfoam, Butte County |
Flowering Plants |
U.S.A. (CA) |
Limnanthaceae |
Endangered |
|
Limnanthes floccosa ssp. grandiflora |
Meadowfoam, large-flowered woolly |
Flowering Plants |
U.S.A. (OR) |
Limnanthaceae |
Endangered |
|
Limnanthes vinculans |
Meadowfoam, Sebastopol |
Flowering Plants |
U.S.A. (CA) |
Limnanthaceae |
Endangered |
|
Lindera melissifolia |
Pondberry |
Flowering Plants |
U.S.A. (AL, AR, FL, GA, LA, MO, MS, NC, SC) |
Lauraceae |
Endangered |
|
Lipochaeta fauriei |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta kamolensis |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta lobata var. leptophylla |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta micrantha |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta tenuifolia |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta venosa |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lipochaeta waimeaensis |
Nehe |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Lithophragma maximum |
Woodland-star, San Clemente Island |
Flowering Plants |
U.S.A. (CA) |
Saxifragaceae |
Endangered |
|
Lobelia gaudichaudii ssp. koolauensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Lobelia monostachya |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Lobelia niihauensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Lobelia oahuensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Lomatium bradshawii |
Desert-parsley, Bradshaw's |
Flowering Plants |
U.S.A. (OR,WA) |
Apiaceae |
Endangered |
|
Lomatium cookii |
Lomatium, Cook's |
Flowering Plants |
U.S.A. (OR) |
Apiaceae |
Endangered |
|
Lotus dendroideus ssp. traskiae |
Broom, San Clemente Island |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Lupinus aridorum |
Lupine, scrub |
Flowering Plants |
U.S.A. (FL) |
Fabaceae |
Endangered |
|
Lupinus nipomensis |
Lupine, Nipomo Mesa |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Lupinus sulphureus (=oreganus) ssp. kincaidii (=var. kincaidii) |
Lupine, Kincaid's |
Flowering Plants |
U.S.A. (OR, WA) |
Fabaceae |
Threatened |
|
Lupinus tidestromii |
Lupine, clover |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Lycopodium (=Phlegmariurus) nutans |
Wawae`iole |
Ferns and Allies |
U.S.A. (HI) |
Lycopodiaceae |
Endangered |
|
Lyonia truncata var. proctorii |
No common name |
Flowering Plants |
U.S.A. (PR) |
Ericaceae |
Endangered |
|
Lysimachia asperulaefolia |
Loosestrife, rough-leaved |
Flowering Plants |
U.S.A. (NC, SC) |
Primulaceae |
Endangered |
|
Lysimachia filifolia |
No common name |
Flowering Plants |
U.S.A. (HI) |
Primulaceae |
Endangered |
|
Lysimachia lydgatei |
No common name |
Flowering Plants |
U.S.A. (HI) |
Primulaceae |
Endangered |
|
Lysimachia maxima |
No common name |
Flowering Plants |
U.S.A. (HI) |
Primulaceae |
Endangered |
|
Macbridea alba |
Birds-in-a-nest, white |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Threatened |
|
Malacothamnus clementinus |
Bush-mallow, San Clemente Island |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Malacothamnus fasciculatus var. nesioticus |
Bush-mallow, Santa Cruz Island |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Malacothrix indecora |
Malacothrix, Santa Cruz Island |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Malacothrix squalida |
Malacothrix, island |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Manihot walkerae |
Manioc, Walker's |
Flowering Plants |
U.S.A. (TX), Mexico |
Euphorbiaceae |
Endangered |
|
Mariscus fauriei |
No common name |
Flowering Plants |
U.S.A. (HI) |
Cyperaceae |
Endangered |
|
Mariscus pennatiformis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Cyperaceae |
Endangered |
|
Marshallia mohrii |
Button, Mohr's Barbara |
Flowering Plants |
U.S.A. (AL, GA) |
Asteraceae |
Threatened |
|
Marsilea villosa |
Ihi`ihi |
Ferns and Allies |
U.S.A. (HI) |
Marsileaceae |
Endangered |
|
Melicope adscendens |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope balloui |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope haupuensis |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope knudsenii |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope lydgatei |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope mucronulata |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope munroi |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope ovalis |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope pallida |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope quadrangularis |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope reflexa |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope saint-johnii |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Melicope zahlbruckneri |
Alani |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Mentzelia leucophylla |
Blazingstar, Ash Meadows |
Flowering Plants |
U.S.A. (NV) |
Loasaceae |
Threatened |
|
Mimulus glabratus var. michiganensis |
Monkey-flower, Michigan |
Flowering Plants |
U.S.A. (MI) |
Scrophulariaceae |
Endangered |
|
Mirabilis macfarlanei |
Four-o'clock, MacFarlane's |
Flowering Plants |
U.S.A. (ID, OR) |
Nyctaginaceae |
Threatened |
|
Mitracarpus maxwelliae |
No common name |
Flowering Plants |
U.S.A. (PR) |
Rubiaceae |
Endangered |
|
Mitracarpus polycladus |
No common name |
Flowering Plants |
U.S.A. (PR), Saba |
Rubiaceae |
Endangered |
|
Monardella linoides ssp. viminea |
Monardella, willowy |
Flowering Plants |
U.S.A. (CA), Mexico |
Lamiaceae |
Endangered |
|
Monolopia (=Lembertia) congdonii |
Wooly-threads, San Joaquin |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Munroidendron racemosum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Araliaceae |
Endangered |
|
Myrcia paganii |
No common name |
Flowering Plants |
U.S.A. (PR) |
Myrtaceae |
Endangered |
|
Myrsine juddii |
Kolea |
Flowering Plants |
U.S.A. (HI) |
Myrsinaceae |
Endangered |
|
Myrsine linearifolia |
Kolea |
Flowering Plants |
U.S.A. (HI) |
Myrsinaceae |
Threatened |
|
Navarretia fossalis |
Navarretia, spreading |
Flowering Plants |
U.S.A. (CA), Mexico (Baja California) |
Polemoniaceae |
Threatened |
|
Navarretia leucocephala ssp. pauciflora (=N. pauciflora) |
Navarretia, few-flowered |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Navarretia leucocephala ssp. plieantha |
Navarretia, many-flowered |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Neostapfia colusana |
Grass, Colusa |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Threatened |
|
Neraudia angulata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Urticaceae |
Endangered |
|
Neraudia ovata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Urticaceae |
Endangered |
|
Neraudia sericea |
No common name |
Flowering Plants |
U.S.A. (HI) |
Urticaceae |
Endangered |
|
Nesogenes rotensis |
No common name |
Flowering Plants |
U.S.A. (MP) |
Verbenaceae |
Endangered |
|
Nitrophila mohavensis |
Niterwort, Amargosa |
Flowering Plants |
U.S.A. (CA, NV) |
Chenopodiaceae |
Endangered |
|
Nolina brittoniana |
Beargrass, Britton's |
Flowering Plants |
U.S.A. (FL) |
Agavaceae |
Endangered |
|
Nothocestrum breviflorum |
`Aiea |
Flowering Plants |
U.S.A. (HI) |
Solanaceae |
Endangered |
|
Nothocestrum peltatum |
`Aiea |
Flowering Plants |
U.S.A. (HI) |
Solanaceae |
Endangered |
|
Nototrichium humile |
Kulu`i |
Flowering Plants |
U.S.A. (HI) |
Amaranthaceae |
Endangered |
|
Ochrosia kilaueaensis |
Holei |
Flowering Plants |
U.S.A. (HI) |
Apocynaceae |
Endangered |
|
Oenothera avita ssp. eurekensis |
Evening-primrose, Eureka Valley |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Endangered |
|
Oenothera deltoides ssp. howellii |
Evening-primrose, Antioch Dunes |
Flowering Plants |
U.S.A. (CA) |
Onagraceae |
Endangered |
|
Opuntia treleasei |
Cactus, Bakersfield |
Flowering Plants |
U.S.A. (CA) |
Cactaceae |
Endangered |
|
Orcuttia californica |
Orcutt grass, California |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Orcuttia inaequalis |
Orcutt grass, San Joaquin |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Threatened |
|
Orcuttia pilosa |
Orcutt grass, hairy |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Orcuttia tenuis |
Orcutt grass, slender |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Threatened |
|
Orcuttia viscida |
Orcutt grass, Sacramento |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Osmoxylon mariannense |
No common name |
Flowering Plants |
U.S.A. (MP) |
Araliaceae |
Endangered |
|
Ottoschulzia rhodoxylon |
Palo de rosa |
Flowering Plants |
U.S.A. (PR), Dominican Republic |
Icacinaceae |
Endangered |
|
Oxypolis canbyi |
Dropwort, Canby's |
Flowering Plants |
U.S.A. (DE, GA, MD, NC, SC) |
Apiaceae |
Endangered |
|
Oxytheca parishii var. goodmaniana |
Oxytheca, cushenbury |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Oxytropis campestris var. chartacea |
Locoweed, Fassett's |
Flowering Plants |
U.S.A. (WI) |
Fabaceae |
Threatened |
|
Panicum fauriei var. carteri |
Panicgrass, Carter's |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Panicum niihauense |
Lau `ehu |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Paronychia chartacea |
Whitlow-wort, papery |
Flowering Plants |
U.S.A. (FL) |
Caryophyllaceae |
Threatened |
|
Parvisedum leiocarpum |
Stonecrop, Lake County |
Flowering Plants |
U.S.A. (CA) |
Crassulaceae |
Endangered |
|
Pedicularis furbishiae |
Lousewort, Furbish |
Flowering Plants |
U.S.A. (ME), Canada (N.B.) |
Scrophulariaceae |
Endangered |
|
Pediocactus (=Echinocactus,=Utahia) sileri |
Cactus, Siler pincushion |
Flowering Plants |
U.S.A. (AZ, UT) |
Cactaceae |
Threatened |
|
Pediocactus bradyi |
Cactus, Brady pincushion |
Flowering Plants |
U.S.A. (AZ) |
Cactaceae |
Endangered |
|
Pediocactus despainii |
Cactus, San Rafael |
Flowering Plants |
U.S.A. (UT) |
Cactaceae |
Endangered |
|
Pediocactus knowltonii |
Cactus, Knowlton |
Flowering Plants |
U.S.A. (CO, NM) |
Cactaceae |
Endangered |
|
Pediocactus peeblesianus peeblesianus |
Cactus, Peebles Navajo |
Flowering Plants |
U.S.A. (AZ) |
Cactaceae |
Endangered |
|
Pediocactus winkleri |
Cactus, Winkler |
Flowering Plants |
U.S.A. (UT) |
Cactaceae |
Threatened |
|
Penstemon haydenii |
Penstemon, blowout |
Flowering Plants |
Nebraska and Wyoming |
Scrophulariaceae |
Endangered |
|
Penstemon penlandii |
Beardtongue, Penland |
Flowering Plants |
U.S.A. (CO) |
Scrophulariaceae |
Endangered |
|
Pentachaeta bellidiflora |
Pentachaeta, white-rayed |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Pentachaeta lyonii |
Pentachaeta, Lyon's |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Peperomia wheeleri |
Peperomia, Wheeler's |
Flowering Plants |
U.S.A. (PR) |
Piperaceae |
Endangered |
|
Peucedanum sandwicense |
Makou |
Flowering Plants |
U.S.A. (HI) |
Apiaceae |
Threatened |
|
Phacelia argillacea |
Phacelia, clay |
Flowering Plants |
U.S.A. (UT) |
Hydrophyllaceae |
Endangered |
|
Phacelia formosula |
Phacelia, North Park |
Flowering Plants |
U.S.A. (CO) |
Hydrophyllaceae |
Endangered |
|
Phacelia insularis ssp. insularis |
Phacelia, island |
Flowering Plants |
U.S.A. (CA) |
Hydrophyllaceae |
Endangered |
|
Phlox hirsuta |
Phlox, Yreka |
Flowering Plants |
U.S.A. (CA) |
Polemoniaceae |
Endangered |
|
Phlox nivalis ssp. texensis |
Phlox, Texas trailing |
Flowering Plants |
U.S.A. (TX) |
Polemoniaceae |
Endangered |
|
Phyllostegia glabra var. lanaiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia hirsuta |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia kaalaensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia knudsenii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia mannii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia mollis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia parviflora |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia racemosa |
Kiponapona |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia velutina |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia waimeae |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia warshaueri |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Phyllostegia wawrana |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Physaria obcordata |
Twinpod, Dudley Bluffs |
Flowering Plants |
U.S.A. (CO) |
Brassicaceae |
Threatened |
|
Pilosocereus robinii |
Cactus, Key tree |
Flowering Plants |
U.S.A. (FL), Cuba |
Cactaceae |
Endangered |
|
Pinguicula ionantha |
Butterwort, Godfrey's |
Flowering Plants |
U.S.A. (FL) |
Lentibulariaceae |
Threatened |
|
Piperia yadonii |
Piperia, Yadon's |
Flowering Plants |
U.S.A. (CA) |
Orchidaceae |
Endangered |
|
Pityopsis ruthii |
Aster, Ruth's golden |
Flowering Plants |
U.S.A. (TN) |
Asteraceae |
Endangered |
|
Plagiobothrys hirtus |
Popcornflower, rough |
Flowering Plants |
U.S.A. (OR) |
Boraginaceae |
Endangered |
|
Plagiobothrys strictus |
Allocarya, Calistoga |
Flowering Plants |
U.S.A. (CA) |
Boraginaceae |
Endangered |
|
Plantago hawaiensis |
Kuahiwi laukahi |
Flowering Plants |
U.S.A. (HI) |
Plantaginaceae |
Endangered |
|
Plantago princeps |
Kuahiwi laukahi |
Flowering Plants |
U.S.A. (HI) |
Plantaginaceae |
Endangered |
|
plantago princeps var. anomala |
Ale |
Flowering Plants |
|
Plantaginacea |
Endangered |
|
plantago princeps var. longibracteata |
Ale |
Flowering Plants |
|
Plantaginaceae |
Endangered |
|
Platanthera holochila |
No common name |
Flowering Plants |
U.S.A. (HI) |
Orchidaceae |
Endangered |
|
Platanthera leucophaea |
Orchid, eastern prairie fringed |
Flowering Plants |
U.S.A. (AR, IA, IL, IN, ME, MI, MO, NE, NJ, NY, OH, OK, PA, VA, WI), Canada (Ont., N.B.) |
Orchidaceae |
Threatened |
|
Platanthera praeclara |
Orchid, western prairie fringed |
Flowering Plants |
U.S.A. (IA, KS, MN, MO, ND, NE, OK, SD), Canada (Man.) |
Orchidaceae |
Threatened |
|
Pleodendron macranthum |
Chupacallos |
Flowering Plants |
U.S.A. (PR) |
Canellaceae |
Endangered |
|
Pleomele hawaiiensis |
Hala pepe |
Flowering Plants |
U.S.A. (HI) |
Liliaceae |
Endangered |
|
Poa atropurpurea |
Bluegrass, San Bernardino |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Poa mannii |
Bluegrass, Mann's |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Poa napensis |
Bluegrass, Napa |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Poa sandvicensis |
Bluegrass, Hawaiian |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Poa siphonoglossa |
No common name |
Flowering Plants |
U.S.A. (HI) |
Poaceae |
Endangered |
|
Pogogyne abramsii |
Mesa-mint, San Diego |
Flowering Plants |
U.S.A. (CA) |
Lamiaceae |
Endangered |
|
Pogogyne nudiuscula |
Mesa-mint, Otay |
Flowering Plants |
U.S.A. (CA), Mexico (Baja California) |
Lamiaceae |
Endangered |
|
Polygala lewtonii |
Polygala, Lewton's |
Flowering Plants |
U.S.A. (FL) |
Polygalaceae |
Endangered |
|
Polygala smallii |
Polygala, tiny |
Flowering Plants |
U.S.A. (FL) |
Polygalaceae |
Endangered |
|
Polygonella basiramia |
Wireweed |
Flowering Plants |
U.S.A. (FL) |
Polygonaceae |
Endangered |
|
Polygonella myriophylla |
Sandlace |
Flowering Plants |
U.S.A. (FL) |
Polygonaceae |
Endangered |
|
Polygonum hickmanii |
Polygonum, Scotts Valley |
Flowering Plants |
U.S.A. (CA) |
Polygonaceae |
Endangered |
|
Polystichum aleuticum |
Fern, Aleutian shield |
Ferns and Allies |
U.S.A. (AK) |
Dryopteridaceae |
Endangered |
|
Polystichum calderonense |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Dryopteridaceae |
Endangered |
|
Portulaca sclerocarpa |
Po`e |
Flowering Plants |
U.S.A. (HI) |
Portulacaceae |
Endangered |
|
Potamogeton clystocarpus |
Pondweed, Little Aguja (=Creek) |
Flowering Plants |
U.S.A. (TX) |
Potamogetonaceae |
Endangered |
|
Potentilla hickmanii |
Potentilla, Hickman's |
Flowering Plants |
U.S.A. (CA) |
Rosaceae |
Endangered |
|
Primula maguirei |
Primrose, Maguire |
Flowering Plants |
U.S.A. (UT) |
Primulaceae |
Threatened |
|
Pritchardia affinis |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia aylmer-robinsonii |
Wahane |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia kaalae |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia munroi |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia napaliensis |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia remota |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia schattaueri |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Pritchardia viscosa |
Lo`ulu |
Flowering Plants |
U.S.A. (HI) |
Arecaceae |
Endangered |
|
Prunus geniculata |
Plum, scrub |
Flowering Plants |
U.S.A. (FL) |
Rosaceae |
Endangered |
|
Pseudobahia bahiifolia |
Sunburst, Hartweg's golden |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Pseudobahia peirsonii |
Sunburst, San Joaquin adobe |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Threatened |
|
Pteralyxia kauaiensis |
Kaulu |
Flowering Plants |
U.S.A. (HI) |
Apocynaceae |
Endangered |
|
Pteris lidgatei |
No common name |
Ferns and Allies |
U.S.A. (HI) |
Adiantaceae |
Endangered |
|
Ptilimnium nodosum |
Harperella |
Flowering Plants |
U.S.A. (AL, AR, GA, MD, NC, SC, WV) |
Apiaceae |
Endangered |
|
Purshia (=Cowania) subintegra |
Cliff-rose, Arizona |
Flowering Plants |
U.S.A. (AZ) |
Rosaceae |
Endangered |
|
Quercus hinckleyi |
Oak, Hinckley |
Flowering Plants |
U.S.A. (TX) |
Fagaceae |
Threatened |
|
Ranunculus aestivalis (=acriformis) |
Buttercup, autumn |
Flowering Plants |
U.S.A. (UT) |
Ranunculaceae |
Endangered |
|
Remya kauaiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Remya mauiensis |
Remya, Maui |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Remya montgomeryi |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Rhododendron chapmanii |
Rhododendron, Chapman |
Flowering Plants |
U.S.A. (FL) |
Ericaceae |
Endangered |
|
Rhus michauxii |
Sumac, Michaux's |
Flowering Plants |
U.S.A. (GA, NC, SC, VA) |
Anacardiaceae |
Endangered |
|
Rhynchospora knieskernii |
Beaked-rush, Knieskern's |
Flowering Plants |
U.S.A. (DE, NJ) |
Cyperaceae |
Threatened |
|
Ribes echinellum |
Gooseberry, Miccosukee |
Flowering Plants |
U.S.A. (FL, SC) |
Saxifragaceae |
Threatened |
|
Rorippa gambellii |
Watercress, Gambel's |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Sagittaria fasciculata |
Arrowhead, bunched |
Flowering Plants |
U.S.A. (NC, SC) |
Alismataceae |
Endangered |
|
Sagittaria secundifolia |
Water-plantain, Kral's |
Flowering Plants |
U.S.A. (AL, GA) |
Alismataceae |
Threatened |
|
Sanicula mariversa |
No common name |
Flowering Plants |
U.S.A. (HI) |
Apiaceae |
Endangered |
|
Sanicula purpurea |
No common name |
Flowering Plants |
U.S.A. (HI) |
Apiaceae |
Endangered |
|
Santalum freycinetianum var. lanaiense |
Sandalwood, Lanai (=`iliahi) |
Flowering Plants |
U.S.A. (HI) |
Santalaceae |
Endangered |
|
Sarracenia oreophila |
Pitcher-plant, green |
Flowering Plants |
U.S.A. (AL, GA, NC, TN) |
Sarraceniaceae |
Endangered |
|
Sarracenia rubra alabamensis |
Pitcher-plant, Alabama canebrake |
Flowering Plants |
U.S.A. (AL) |
Sarraceniaceae |
Endangered |
|
Sarracenia rubra ssp. jonesii |
Pitcher-plant, mountain sweet |
Flowering Plants |
U.S.A. (NC, SC) |
Sarraceniaceae |
Endangered |
|
Scaevola coriacea |
Naupaka, dwarf |
Flowering Plants |
U.S.A. (HI) |
Goodeniaceae |
Endangered |
|
Schiedea adamantis |
Schiedea, Diamond Head |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea apokremnos |
Ma`oli`oli |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea haleakalensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea helleri |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea hookeri |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea kaalae |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea kauaiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea kealiae |
Ma`oli`oli |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea lydgatei |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea membranacea |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea nuttallii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea sarmentosa |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea spergulina var. leiopoda |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea spergulina var. spergulina |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Threatened |
|
Schiedea stellarioides |
Laulihilihi |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schiedea verticillata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Schoenocrambe argillacea |
Reed-mustard, clay |
Flowering Plants |
U.S.A. (UT) |
Brassicaceae |
Threatened |
|
Schoenocrambe barnebyi |
Reed-mustard, Barneby |
Flowering Plants |
U.S.A. (UT) |
Brassicaceae |
Endangered |
|
Schoenocrambe suffrutescens |
Reed-mustard, shrubby |
Flowering Plants |
U.S.A. (UT) |
Brassicaceae |
Endangered |
|
Schoepfia arenaria |
No common name |
Flowering Plants |
U.S.A. (PR) |
Olacaceae |
Threatened |
|
Schwalbea americana |
Chaffseed, American |
Flowering Plants |
U.S.A. (AL, CT, DE, FL, GA, LA, MA, MD, MI, MS, NC, NJ, NY, SC, TN, VA) |
Scrophulariaceae |
Endangered |
|
Scirpus ancistrochaetus |
Bulrush, Northeastern |
Flowering Plants |
U.S.A. (MA, MD, NH, NY, PA, VA, VT, WV) |
Cyperaceae |
Endangered |
|
Sclerocactus glaucus |
Cactus, Uinta Basin hookless |
Flowering Plants |
U.S.A. (CO, UT) |
Cactaceae |
Threatened |
|
Sclerocactus mesae-verdae |
Cactus, Mesa Verde |
Flowering Plants |
U.S.A. (CO, NM) |
Cactaceae |
Threatened |
|
Sclerocactus wrightiae |
Cactus, Wright fishhook |
Flowering Plants |
U.S.A. (UT) |
Cactaceae |
Endangered |
|
Scutellaria floridana |
Skullcap, Florida |
Flowering Plants |
U.S.A. (FL) |
Lamiaceae |
Threatened |
|
Scutellaria montana |
Skullcap, large-flowered |
Flowering Plants |
U.S.A. (GA, TN) |
Lamiaceae |
Threatened |
|
Sedum integrifolium ssp. leedyi |
Roseroot, Leedy's |
Flowering Plants |
U.S.A. (MN, NY) |
Crassulaceae |
Threatened |
|
Senecio franciscanus |
Groundsel, San Francisco Peaks |
Flowering Plants |
U.S.A. (AZ) |
Asteraceae |
Threatened |
|
Senecio layneae |
Butterweed, Layne's |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Threatened |
|
Serianthes nelsonii |
Iagu, Hayun (=(Guam), Tronkon guafi (Rota)) |
Flowering Plants |
Western Pacific Ocean-U.S.A. (GU, MP-Rota) |
Fabaceae |
Endangered |
|
Sesbania tomentosa |
Ohai |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Sibara filifolia |
Rockcress, Santa Cruz Island |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Sicyos alba |
`Anunu |
Flowering Plants |
U.S.A. (HI) |
Cucurbitaceae |
Endangered |
|
Sidalcea keckii |
Checker-mallow, Keck's |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Sidalcea nelsoniana |
Checker-mallow, Nelson's |
Flowering Plants |
U.S.A. (OR, WA) |
Malvaceae |
Threatened |
|
Sidalcea oregana ssp. valida |
Checker-mallow, Kenwood Marsh |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Sidalcea oregana var. calva |
Checkermallow, Wenatchee Mountains |
Flowering Plants |
U.S.A. (WA) |
Malvaceae |
Endangered |
|
Sidalcea pedata |
Checker-mallow, pedate |
Flowering Plants |
U.S.A. (CA) |
Malvaceae |
Endangered |
|
Silene alexandri |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Silene hawaiiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Threatened |
|
Silene lanceolata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Silene perlmanii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Caryophyllaceae |
Endangered |
|
Silene polypetala |
Campion, fringed |
Flowering Plants |
U.S.A. (FL, GA) |
Caryophyllaceae |
Endangered |
|
Silene spaldingii |
Catchfly, Spalding's |
Flowering Plants |
U.S.A. (ID, MT, OR, WA) |
Caryophyllaceae |
Threatened |
|
Sisyrinchium dichotomum |
Irisette, white |
Flowering Plants |
U.S.A. (NC) |
Iridaceae |
Endangered |
|
Solanum drymophilum |
Erubia |
Flowering Plants |
U.S.A. (PR) |
Solanaceae |
Endangered |
|
Solanum incompletum |
Popolo ku mai |
Flowering Plants |
U.S.A. (HI) |
Solanaceae |
Endangered |
|
Solanum sandwicense |
`Aiakeakua, popolo |
Flowering Plants |
U.S.A. (HI) |
Solanaceae |
Endangered |
|
Solidago albopilosa |
Goldenrod, white-haired |
Flowering Plants |
U.S.A. (KY) |
Asteraceae |
Threatened |
|
Solidago houghtonii |
Goldenrod, Houghton's |
Flowering Plants |
U.S.A. (MI), Canada (Ont.) |
Asteraceae |
Threatened |
|
Solidago shortii |
Goldenrod, Short's |
Flowering Plants |
U.S.A. (KY) |
Asteraceae |
Endangered |
|
Solidago spithamaea |
Goldenrod, Blue Ridge |
Flowering Plants |
U.S.A. (NC, TN) |
Asteraceae |
Threatened |
|
Spermolepis hawaiiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Apiaceae |
Endangered |
|
Spigelia gentianoides |
Pinkroot, gentian |
Flowering Plants |
U.S.A. (AL, FL) |
Loganiaceae |
Endangered |
|
Spiraea virginiana |
Spiraea, Virginia |
Flowering Plants |
U.S.A. (GA, KY, NC, OH, PA, TN, VA, WV) |
Rosaceae |
Threatened |
|
Spiranthes delitescens |
Ladies'-tresses, Canelo Hills |
Flowering Plants |
U.S.A. (AZ) |
Orchidaceae |
Endangered |
|
Spiranthes diluvialis |
Ladies'-tresses, Ute |
Flowering Plants |
U.S.A. (CO, ID, MT, NE, NV, UT, WA, WY) |
Orchidaceae |
Threatened |
|
Spiranthes parksii |
Ladies'-tresses, Navasota |
Flowering Plants |
U.S.A. (TX) |
Orchidaceae |
Endangered |
|
Stahlia monosperma |
Cobana negra |
Flowering Plants |
U.S.A. (PR), Dominican Republic |
Fabaceae |
Threatened |
|
Stenogyne angustifolia var. angustifolia |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Stenogyne bifida |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Stenogyne campanulata |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Stenogyne kanehoana |
No common name |
Flowering Plants |
U.S.A. (HI) |
Lamiaceae |
Endangered |
|
Stephanomeria malheurensis |
Wire-lettuce, Malheur |
Flowering Plants |
U.S.A. (OR) |
Asteraceae |
Endangered |
|
Streptanthus albidus ssp. albidus |
Jewelflower, Metcalf Canyon |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Streptanthus niger |
Jewelflower, Tiburon |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Styrax portoricensis |
Palo de jazmin |
Flowering Plants |
U.S.A. (PR) |
Styracaceae |
Endangered |
|
Styrax texanus |
Snowbells, Texas |
Flowering Plants |
U.S.A. (TX) |
Styracaceae |
Endangered |
|
Suaeda californica |
Seablite, California |
Flowering Plants |
U.S.A. (CA) |
Chenopodiaceae |
Endangered |
|
Swallenia alexandrae |
Grass, Eureka Dune |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Taraxacum californicum |
Taraxacum, California |
Flowering Plants |
U.S.A. (CA) |
Asteraceae |
Endangered |
|
Tectaria estremerana |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Dryopteridaceae |
Endangered |
|
Ternstroemia luquillensis |
Palo colorado |
Flowering Plants |
U.S.A. (PR) |
Theaceae |
Endangered |
|
Ternstroemia subsessilis |
No common name |
Flowering Plants |
U.S.A. (PR) |
Theaceae |
Endangered |
|
Tetramolopium arenarium |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Tetramolopium capillare |
Pamakani |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Tetramolopium filiforme |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Tetramolopium lepidotum ssp. lepidotum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Tetramolopium remyi |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Tetramolopium rockii |
No common name |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Threatened |
|
Tetraplasandra gymnocarpa |
`Ohe`ohe |
Flowering Plants |
U.S.A. (HI) |
Araliaceae |
Endangered |
|
Thalictrum cooleyi |
Meadowrue, Cooley's |
Flowering Plants |
U.S.A. (FL, NC) |
Ranunculaceae |
Endangered |
|
Thelypodium howellii spectabilis |
Thelypody, Howell's spectacular |
Flowering Plants |
U.S.A. (OR) |
Brassicaceae |
Threatened |
|
Thelypodium stenopetalum |
Mustard, slender-petaled |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Thelypteris inabonensis |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Thelypteridaceae |
Endangered |
|
Thelypteris pilosa var. alabamensis |
Fern, Alabama streak-sorus |
Ferns and Allies |
U.S.A. (AL) |
Thelypteridaceae |
Threatened |
|
Thelypteris verecunda |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Thelypteridaceae |
Endangered |
|
Thelypteris yaucoensis |
No common name |
Ferns and Allies |
U.S.A. (PR) |
Thelypteridaceae |
Endangered |
|
Thlaspi californicum |
Penny-cress, Kneeland Prairie |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Thymophylla tephroleuca |
Dogweed, ashy |
Flowering Plants |
U.S.A. (TX) |
Asteraceae |
Endangered |
|
Thysanocarpus conchuliferus |
Fringepod, Santa Cruz Island |
Flowering Plants |
U.S.A. (CA) |
Brassicaceae |
Endangered |
|
Torreya taxifolia |
Torreya, Florida |
Conifers and Cycads |
U.S.A. (FL, GA) |
Taxaceae |
Endangered |
|
Townsendia aprica |
Townsendia, Last Chance |
Flowering Plants |
U.S.A. (UT) |
Asteraceae |
Threatened |
|
Trematolobelia singularis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Campanulaceae |
Endangered |
|
Trichilia triacantha |
Bariaco |
Flowering Plants |
U.S.A. (PR) |
Meliaceae |
Endangered |
|
Trichostema austromontanum ssp. compactum |
Bluecurls, Hidden Lake |
Flowering Plants |
U.S.A. (CA) |
Lamiaceae |
Threatened |
|
Trifolium amoenum |
Clover, showy Indian |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Trifolium stoloniferum |
Clover, running buffalo |
Flowering Plants |
U.S.A. (AR, IL, IN, KS, KY, MO, OH, WV) |
Fabaceae |
Endangered |
|
Trifolium trichocalyx |
Clover, Monterey |
Flowering Plants |
U.S.A. (CA) |
Fabaceae |
Endangered |
|
Trillium persistens |
Trillium, persistent |
Flowering Plants |
U.S.A. (GA, SC) |
Liliaceae |
Endangered |
|
Trillium reliquum |
Trillium, relict |
Flowering Plants |
U.S.A. (AL, GA, SC) |
Liliaceae |
Endangered |
|
Tuctoria greenei |
Tuctoria, Greene's |
Flowering Plants |
U.S.A. (CA |
Poaceae |
Endangered |
|
Tuctoria mucronata |
Grass, Solano |
Flowering Plants |
U.S.A. (CA) |
Poaceae |
Endangered |
|
Urera kaalae |
Opuhe |
Flowering Plants |
U.S.A. (HI) |
Urticaceae |
Endangered |
|
Verbena californica |
Vervain, Red Hills |
Flowering Plants |
U.S.A. (CA) |
Verbenaceae |
Threatened |
|
Verbesina dissita |
Crownbeard, big-leaved |
Flowering Plants |
U.S.A. (CA), Mexico. |
Asteraceae |
Threatened |
|
Vernonia proctorii |
No common name |
Flowering Plants |
U.S.A. (PR) |
Asteraceae |
Endangered |
|
Vicia menziesii |
Vetch, Hawaiian |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Vigna o-wahuensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Fabaceae |
Endangered |
|
Viola chamissoniana ssp. chamissoniana |
Pamakani |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Viola helenae |
No common name |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Viola kauaiensis var. wahiawaensis |
Nani wai`ale`ale |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Viola lanaiensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Viola oahuensis |
No common name |
Flowering Plants |
U.S.A. (HI) |
Violaceae |
Endangered |
|
Warea amplexifolia |
Warea, wide-leaf |
Flowering Plants |
U.S.A. (FL) |
Brassicaceae |
Endangered |
|
Warea carteri |
Mustard, Carter's |
Flowering Plants |
U.S.A. (FL) |
Brassicaceae |
Endangered |
|
Wilkesia hobdyi |
Iliau, dwarf |
Flowering Plants |
U.S.A. (HI) |
Asteraceae |
Endangered |
|
Xylosma crenatum |
No common name |
Flowering Plants |
U.S.A. (HI) |
Flacourtiaceae |
Endangered |
|
Xyris tennesseensis |
Grass, Tennessee yellow-eyed |
Flowering Plants |
U.S.A. (AL, GA, TN) |
Xyridaceae |
Endangered |
|
Yermo xanthocephalus |
Yellowhead, desert |
Flowering Plants |
U.S.A. (WY) |
Asteraceae |
Threatened |
|
Zanthoxylum dipetalum var. tomentosum |
A`e |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Zanthoxylum hawaiiense |
A`e |
Flowering Plants |
U.S.A. (HI) |
Rutaceae |
Endangered |
|
Zanthoxylum thomasianum |
Prickly-ash, St. Thomas |
Flowering Plants |
U.S.A. (PR, VI) |
Rutaceae |
Endangered |
|
Zizania texana |
Wild-rice, Texas |
Flowering Plants |
U.S.A. (TX) |
Poaceae |
Endangered |
|
Ziziphus celata |
Ziziphus, Florida |
Flowering Plants |
U.S.A. (FL) |
Rhamnaceae |
Endangered |