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Endangered Plant Species
Since there are so many plants that are either threatened or  endangered we have separated them into those two groups; Endangered Plants (this page) and Threatened Plants.

We will try to update the pages,  use this only for reference.

 
Common Name Scientfic Name  
`aiakeakua, popolo Solanum sandwicense E
`aiea Nothocestrum breviflorum E
`aiea Nothocestrum peltatum E
`akoko Chamaesyce celastroides var. kaenana E
`akoko, Ewa Plains Chamaesyce skottsbergii var. kalaeloana E
`anaunau Lepidium arbuscula E
`anunu Sicyos alba E
`awikiwiki Canavalia molokaiensis E
`oha wai Clermontia drepanomorpha E
`ohe`ohe Tetraplasandra gymnocarpa E
a`e Zanthoxylum dipetalum var. tomentosum E
agave, Arizona Agave arizonica E
alani Melicope adscendens E
allocarya, Calistoga Plagiobothrys strictus E
alopecurus, Sonoma Alopecurus aequalis var. sonomensis E
ambrosia, San Diego Ambrosia pumila E
ambrosia, south Texas Ambrosia cheiranthifolia E
arrowhead, bunched Sagittaria fasciculata E
aster, Ruth's golden Pityopsis ruthii E
aupaka Isodendrion hosakae E
avens, spreading Geum radiatum E
awiwi Hedyotis cookiana E
ayenia, Texas Ayenia limitaris E
Barberry, island Berberis pinnata ssp. insularis E
barberry, Nevin's Berberis nevinii E
bariaco Trichilia triacantha E
beardtongue, Penland Penstemon penlandii E
beargrass, Britton's Nolina brittoniana E
bear-poppy, dwarf Arctomecon humilis E
beauty, Harper's Harperocallis flava E
bedstraw, El Dorado Galium californicum ssp. sierrae E
bedstraw, island Galium buxifolium E
bellflower, Brooksville Campanula robinsiae E
bird's beak, palmate-bracted Cordylanthus palmatus E
bird's-beak, Pennell's Cordylanthus tenuis ssp. capillaris E
bird's-beak, salt marsh Cordylanthus maritimus ssp. maritimus E
bird's-beak, soft Cordylanthus mollis ssp. mollis E
bittercress, small-anthered Cardamine micranthera E
bittercress, small-anthered Cardamine micranthera E
bladderpod, kodachrome Lesquerella tumulosa E
bladderpod, San Bernardino Mountains Lesquerella kingii ssp. bernardina E
bladderpod, Spring Creek Lesquerella perforata E
bladderpod, white Lesquerella pallida E
bladderpod, Zapata Lesquerella thamnophila E
blazingstar, scrub Liatris ohlingerae E
bluegrass, Hawaiian Poa sandvicensis E
bluegrass, Mann's Poa mannii E
bluegrass, Napa Poa napensis E
bluegrass, San Bernardino Poa atropurpurea E
blue-star, Kearney's Amsonia kearneyana E
bluet, Roan Mountain Hedyotis purpurea var. montana E
boxwood, Vahl's Buxus vahlii E
broom, San Clemente Island Lotus dendroideus ssp. traskiae E
buckwheat, cushenbury Eriogonum ovalifolium var. vineum E
buckwheat, Ione (incl. Irish Hill) Eriogonum apricum (incl. var. prostratum) E
buckwheat, steamboat Eriogonum ovalifolium var. williamsiae E
bulrush, Northeastern Scirpus ancistrochaetus E
bush-mallow, San Clemente Island Malacothamnus clementinus E
bush-mallow, Santa Cruz Island Malacothamnus fasciculatus var. nesioticus E
Buttercup, autumn Ranunculus aestivalis (=acriformis) E
button-celery, San Diego Eryngium aristulatum var. parishii E
cactus, Arizona hedgehog Echinocereus triglochidiatus var. arizonicus E
cactus, Bakersfield Opuntia treleasei E
cactus, black lace Echinocereus reichenbachii var. albertii E
cactus, Brady pincushion Pediocactus bradyi E
cactus, Key tree Pilosocereus robinii E
cactus, Knowlton Pediocactus knowltonii E
cactus, Kuenzler hedgehog Echinocereus fendleri var. kuenzleri E
cactus, Nellie cory Coryphantha minima E
cactus, Nichol's Turk's head Echinocactus horizonthalonius var. nicholii E
cactus, Peebles Navajo Pediocactus peeblesianus peeblesianus E
cactus, Pima pineapple Coryphantha scheeri var. robustispina E
cactus, San Rafael Pediocactus despainii E
cactus, Sneed pincushion Coryphantha sneedii var. sneedii E
cactus, star Astrophytum asterias E
cactus, Tobusch fishhook Ancistrocactus tobuschii E
cactus, Wright fishhook Sclerocactus wrightiae E
campion, fringed Silene polypetala E
capa rosa Callicarpa ampla E
cat's-eye, Terlingua Creek Cryptantha crassipes E
ceanothus, coyote Ceanothus ferrisae E
ceanothus, Pine Hill Ceanothus roderickii E
chaff-flower, round-leaved Achyranthes splendens var. rotundata E
chaffseed, American Schwalbea americana E
Checker-mallow, Keck's Sidalcea keckii E
checker-mallow, Kenwood Marsh Sidalcea oregana ssp. valida E
checker-mallow, pedate Sidalcea pedata E
checkermallow, Wenatchee Mountains Sidalcea oregana var. calva E
chupacallos Pleodendron macranthum E
cladonia, Florida perforate Cladonia perforata E
clarkia, Pismo Clarkia speciosa ssp. immaculata E
clarkia, Presidio Clarkia franciscana E
clarkia, Vine Hill Clarkia imbricata E
Cliff-rose, Arizona Purshia (=Cowania) subintegra E
clover, Monterey Trifolium trichocalyx E
clover, running buffalo Trifolium stoloniferum E
clover, showy Indian Trifolium amoenum E
coneflower, smooth Echinacea laevigata E
coneflower, Tennessee pink Echinacea tennesseensis E
crownscale, San Jacinto Valley Atriplex coronata var. notatior E
cypress, Santa Cruz Cupressus abramsiana E
daisy, Willamette Erigeron decumbens var. decumbens E
dawn-flower, Texas prairie Hymenoxys texana E
desert-parsley, Bradshaw's Lomatium bradshawii E
diellia, asplenium-leaved Diellia erecta E
dogweed, ashy Thymophylla tephroleuca E
dropwort, Canby's Oxypolis canbyi E
dudleya, Santa Clara Valley Dudleya setchellii E
erubia Solanum drymophilum E
evening-primrose, Antioch Dunes Oenothera deltoides ssp. howellii E
evening-primrose, Eureka Valley Oenothera avita ssp. eurekensis E
fern, Aleutian shield Polystichum aleuticum E
fern, Elfin tree Cyathea dryopteroides E
fern, pendant kihi Adenophorus periens E
fiddleneck, large-flowered Amsinckia grandiflora E
flannelbush, Mexican Fremontodendron mexicanum E
flannelbush, Pine Hill Fremontodendron californicum ssp. decumbens E
frankenia, Johnston's Frankenia johnstonii E
fringepod, Santa Cruz Island Thysanocarpus conchuliferus E
fringe-tree, pygmy Chionanthus pygmaeus E
Fritillary, Gentner's Fritillaria gentneri E
gardenia, Hawaiian Gardenia brighamii E
geranium, Hawaiian red-flowered Geranium arboreum E
gerardia, sandplain Agalinis acuta E
gilia, Hoffmann's slender-flowered Gilia tenuiflora ssp. hoffmannii E
gilia, Monterey Gilia tenuiflora ssp. arenaria E
goetzea, beautiful Goetzea elegans E
goldenrod, Short's Solidago shortii E
goldfields, Burke's Lasthenia burkei E
goldfields, Contra Costa Lasthenia conjugens E
gourd, Okeechobee Cucurbita okeechobeensis ssp. okeechobeensis E
grass, Eureka Dune Swallenia alexandrae E
grass, Solano Tuctoria mucronata E
grass, Tennessee yellow-eyed Xyris tennesseensis E
ground-plum, Guthrie's (=Pyne's) Astragalus bibullatus E
ha`iwale Cyrtandra crenata E
ha`iwale Cyrtandra dentata E
ha`iwale Cyrtandra giffardii E
ha`iwale Cyrtandra munroi E
ha`iwale Cyrtandra polyantha E
ha`iwale Cyrtandra subumbellata E
ha`iwale Cyrtandra tintinnabula E
ha`iwale Cyrtandra viridiflora E
haha Cyanea acuminata E
haha Cyanea asarifolia E
haha Cyanea copelandii ssp. copelandii E
haha Cyanea copelandii ssp. haleakalaensis E
haha Cyanea dunbarii E
haha Cyanea glabra E
haha Cyanea grimesiana ssp. grimesiana E
haha Cyanea grimesiana ssp. obatae E
haha Cyanea hamatiflora carlsonii E
haha Cyanea hamatiflora ssp. hamatiflora E
haha Cyanea humboldtiana E
haha Cyanea koolauensis E
haha Cyanea lobata E
haha Cyanea longiflora E
haha Cyanea macrostegia ssp. gibsonii E
haha Cyanea mannii E
haha Cyanea mceldowneyi E
haha Cyanea pinnatifida E
haha Cyanea platyphylla E
haha Cyanea procera E
haha Cyanea recta T
haha Cyanea remyi E
haha Cyanea shipmannii E
haha Cyanea stictophylla E
haha Cyanea st-johnii E
haha Cyanea superba E
haha Cyanea truncata E
haha Cyanea undulata E
hala pepe Pleomele hawaiiensis E
harebells, Avon Park Crotalaria avonensis E
harperella Ptilimnium nodosum E
hau kuahiwi Hibiscadelphus giffardianus E
hau kuahiwi Hibiscadelphus hualalaiensis E
hau kuahiwi Hibiscadelphus woodii E
heau Exocarpos luteolus E
hedyotis, Na Pali beach Hedyotis st.-johnii E
hibiscus, Clay's Hibiscus clayi E
higuero de sierra Crescentia portoricensis E
holei Ochrosia kilaueaensis E
holly, Cook's Ilex cookii E
Honohono Haplostachys haplostachya E
hypericum, highlands scrub Hypericum cumulicola E
Iagu, Hayun (=(Guam), Tronkon guafi (Rota)) Serianthes nelsonii E
ihi`ihi Marsilea villosa E
iliau, dwarf Wilkesia hobdyi E
indian paintbrush, San Clemente Island Castilleja grisea E
ipomopsis, Holy Ghost Ipomopsis sancti-spiritus E
irisette, white Sisyrinchium dichotomum E
ischaemum, Hilo Ischaemum byrone E
jacquemontia, beach Jacquemontia reclinata E
jewelflower, California Caulanthus californicus E
jewelflower, Metcalf Canyon Streptanthus albidus ssp. albidus E
jewelflower, Tiburon Streptanthus niger E
kamakahala Labordia cyrtandrae E
kamakahala Labordia lydgatei E
kamakahala Labordia tinifolia var. lanaiensis E
kamakahala Labordia tinifolia var. wahiawaensis E
kamakahala Labordia triflora E
Kamanomano Cenchrus agrimonioides E
kauai hau kuahiwi Hibiscadelphus distans E
kauila Colubrina oppositifolia E
kaulu Pteralyxia kauaiensis E
kio`ele Hedyotis coriacea E
kiponapona Phyllostegia racemosa E
ko`oko`olau Bidens micrantha ssp. kalealaha E
ko`oko`olau Bidens wiebkei E
ko`oloa`ula Abutilon menziesii E
kohe malama malama o kanaloa Kanaloa kahoolawensis E
koki`o Kokia drynarioides E
Koki`o Kokia kauaiensis E
koki`o ke`oke`o Hibiscus arnottianus ssp. immaculatus E
koki`o ke`oke`o Hibiscus waimeae ssp. hannerae E
koki`o, Cooke's Kokia cookei E
kolea Myrsine juddii E
Kopa Hedyotis schlechtendahliana var. remyi E
kuahiwi laukahi Plantago hawaiensis E
kuahiwi laukahi Plantago princeps E
kuawawaenohu Alsinidendron lychnoides E
kula wahine noho Isodendrion pyrifolium E
kulu`i Nototrichium humile E
ladies'-tresses, Canelo Hills Spiranthes delitescens E
ladies'-tresses, Navasota Spiranthes parksii E
larkspur, Baker's Delphinium bakeri E
larkspur, San Clemente Island Delphinium variegatum ssp. kinkiense E
larkspur, yellow Delphinium luteum E
lau `ehu Panicum niihauense E
Laulihilihi Schiedea stellarioides E
layia, beach Layia carnosa E
lead-plant, Crenulate Amorpha crenulata E
leather flower, Alabama Clematis socialis E
leather flower, Morefield's Clematis morefieldii E
lessingia, San Francisco Lessingia germanorum (=L.g. var. germanorum) E
lichen, rock gnome Gymnoderma lineare E
liliwai Acaena exigua E
lily, Minnesota dwarf trout Erythronium propullans E
lily, Pitkin Marsh Lilium pardalinum ssp. pitkinense E
lily, Western Lilium occidentale E
liveforever, Santa Barbara Island Dudleya traskiae E
lo`ulu Pritchardia affinis E
lo`ulu Pritchardia kaalae E
lo`ulu Pritchardia munroi E
lo`ulu Pritchardia napaliensis E
lo`ulu Pritchardia remota E
lo`ulu Pritchardia schattaueri E
lo`ulu Pritchardia viscosa E
lomatium, Cook's Lomatium cookii E
loosestrife, rough-leaved Lysimachia asperulaefolia E
lousewort, Furbish Pedicularis furbishiae E
love grass, Fosberg's Eragrostis fosbergii E
lupine, clover Lupinus tidestromii E
lupine, Nipomo Mesa Lupinus nipomensis E
lupine, scrub Lupinus aridorum E
ma`o hau hele, (=native yellow hibiscus) Hibiscus brackenridgei E
ma`oli`oli Schiedea apokremnos E
ma`oli`oli Schiedea kealiae E
mahoe Alectryon macrococcus E
malacothrix, island Malacothrix squalida E
malacothrix, Santa Cruz Island Malacothrix indecora E
mallow, Kern Eremalche kernensis E
mallow, Peter's Mountain Iliamna corei E
manioc, Walker's Manihot walkerae E
manzanita, Del Mar Arctostaphylos glandulosa ssp. crassifolia E
Manzanita, Presidio Arctostaphylos hookeri var. ravenii E
manzanita, Santa Rosa Island Arctostaphylos confertiflora E
mapele Cyrtandra cyaneoides E
meadowfoam, Butte County Limnanthes floccosa ssp. californica E
Meadowfoam, large-flowered woolly Limnanthes floccosa ssp. grandiflora E
meadowfoam, Sebastopol Limnanthes vinculans E
meadowrue, Cooley's Thalictrum cooleyi E
mehamehame Flueggea neowawraea E
mesa-mint, Otay Pogogyne nudiuscula E
mesa-mint, San Diego Pogogyne abramsii E
milkpea, Small's Galactia smallii E
milk-vetch, Applegate's Astragalus applegatei E
milk-vetch, Braunton's Astragalus brauntonii E
milk-vetch, Clara Hunt's Astragalus clarianus E
milk-vetch, Coachella Valley Astragalus lentiginosus var. coachellae E
milk-vetch, coastal dunes Astragalus tener var. titi E
milk-vetch, Cushenbury Astragalus albens E
milk-vetch, Holmgren Astragalus holmgreniorum E
milk-vetch, Jesup's Astragalus robbinsii var. jesupi E
milk-vetch, Lane Mountain Astragalus jaegerianus E
milk-vetch, Mancos Astragalus humillimus E
milk-vetch, Osterhout Astragalus osterhoutii E
milk-vetch, Sentry Astragalus cremnophylax var. cremnophylax E
milk-vetch, Shivwitz Astragalus ampullarioides E
milk-vetch, triple-ribbed Astragalus tricarinatus E
Milk-vetch, Ventura Marsh Astragalus pycnostachyus var. lanosissimus E
mint, Garrett's Dicerandra christmanii E
mint, Lakela's Dicerandra immaculata E
mint, longspurred Dicerandra cornutissima E
mint, scrub Dicerandra frutescens E
monardella, willowy Monardella linoides ssp. viminea E
monkey-flower, Michigan Mimulus glabratus var. michiganensis E
morning-glory, Stebbins' Calystegia stebbinsii E
mountain balm, Indian Knob Eriodictyon altissimum E
mountain-mahogany, Catalina Island Cercocarpus traskiae E
mustard, Carter's Warea carteri E
mustard, slender-petaled Thelypodium stenopetalum E
na`ena`e Dubautia herbstobatae E
na`ena`e Dubautia latifolia E
na`ena`e Dubautia pauciflorula E
na`ena`e Dubautia plantaginea ssp. humilis E
nani wai`ale`ale Viola kauaiensis var. wahiawaensis E
nanu Gardenia mannii E
naupaka, dwarf Scaevola coriacea E
navarretia, few-flowered Navarretia leucocephala ssp. pauciflora (=N. pauciflora) E
navarretia, many-flowered Navarretia leucocephala ssp. plieantha E
nehe Lipochaeta fauriei E
nehe Lipochaeta kamolensis E
nehe Lipochaeta lobata var. leptophylla E
nehe Lipochaeta micrantha E
nehe Lipochaeta tenuifolia E
nehe Lipochaeta waimeaensis E
nioi Eugenia koolauensis E
niterwort, Amargosa Nitrophila mohavensis E
no common name Abutilon eremitopetalum E
no common name Abutilon sandwicense E
no common name Achyranthes mutica E
no common name Adiantum vivesii E
no common name Alsinidendron obovatum E
no common name Alsinidendron trinerve E
no common name Alsinidendron viscosum E
no common name Amaranthus brownii E
no common name Aristida chaseae E
no common name Asplenium fragile var. insulare E
no common name Auerodendron pauciflorum E
no common name Bonamia menziesii E
no common name Calyptranthes thomasiana E
no common name Catesbaea melanocarpa E
no common name Chamaecrista glandulosa var. mirabilis E
no common name Chamaesyce halemanui E
no common name Cordia bellonis E
no common name Cranichis ricartii E
no common name Cyanea (=Rollandia) crispa E
no common name Daphnopsis hellerana E
no common name Delissea rhytidosperma E
no common name Delissea undulata E
no common name Diellia falcata E
no common name Diellia pallida E
no common name Diellia unisora E
no common name Diplazium molokaiense E
no common name Elaphoglossum serpens E
no common name Eugenia woodburyana E
no common name Gahnia lanaiensis E
no common name Gouania hillebrandii E
no common name Gouania meyenii E
no common name Gouania vitifolia E
no common name Hedyotis degeneri E
no common name Hedyotis parvula E
no common name Hesperomannia arborescens E
no common name Hesperomannia arbuscula E
no common name Hesperomannia lydgatei E
no common name Ilex sintenisii E
no common name Lepanthes eltoroensis E
no common name Leptocereus grantianus E
no common name Lipochaeta venosa E
no common name Lobelia gaudichaudii ssp. koolauensis E
no common name Lobelia monostachya E
no common name Lobelia niihauensis E
no common name Lobelia oahuensis E
no common name Lyonia truncata var. proctorii E
no common name Lysimachia filifolia E
no common name Lysimachia lydgatei E
no common name Lysimachia maxima E
no common name Mariscus fauriei E
no common name Mariscus pennatiformis E
no common name Mitracarpus maxwelliae E
no common name Mitracarpus polycladus E
no common name Munroidendron racemosum E
no common name Myrcia paganii E
no common name Neraudia angulata E
no common name Neraudia ovata E
no common name Neraudia sericea E
no common name Phyllostegia glabra var. lanaiensis E
no common name Phyllostegia hirsuta E
no common name Phyllostegia kaalaensis E
no common name Phyllostegia knudsenii E
no common name Phyllostegia mannii E
no common name Phyllostegia mollis E
no common name Phyllostegia parviflora E
no common name Phyllostegia velutina E
no common name Phyllostegia waimeae E
no common name Phyllostegia warshaueri E
no common name Phyllostegia wawrana E
no common name Platanthera holochila E
no common name Poa siphonoglossa E
no common name Polystichum calderonense E
no common name Pteris lidgatei E
no common name Remya kauaiensis E
no common name Remya montgomeryi E
no common name Sanicula mariversa E
no common name Sanicula purpurea E
no common name Schiedea haleakalensis E
no common name Schiedea helleri E
no common name Schiedea hookeri E
no common name Schiedea kaalae E
no common name Schiedea kauaiensis E
no common name Schiedea lydgatei E
no common name Schiedea membranacea E
no common name Schiedea nuttallii E
no common name Schiedea sarmentosa E
no common name Schiedea spergulina var. leiopoda E
no common name Schiedea verticillata E
no common name Silene alexandri E
no common name Silene lanceolata E
no common name Silene perlmanii E
no common name Spermolepis hawaiiensis E
no common name Stenogyne angustifolia var. angustifolia E
no common name Stenogyne bifida E
no common name Stenogyne campanulata E
no common name Stenogyne kanehoana E
no common name Tectaria estremerana E
no common name Ternstroemia subsessilis E
no common name Tetramolopium arenarium E
no common name Tetramolopium filiforme E
no common name Tetramolopium lepidotum ssp. lepidotum E
no common name Tetramolopium remyi E
no common name Thelypteris inabonensis E
no common name Thelypteris verecunda E
no common name Thelypteris yaucoensis E
no common name Trematolobelia singularis E
no common name Vernonia proctorii E
no common name Vigna o-wahuensis E
no common name Viola helenae E
no common name Viola lanaiensis E
no common name Viola oahuensis E
no common name Xylosma crenatum E
nohoanu Geranium multiflorum E
oha Delissea rivularis E
oha Delissea subcordata E
ohai Sesbania tomentosa E
olulu Brighamia insignis E
onion, Munz's Allium munzii E
opuhe Urera kaalae E
Orcutt grass, California Orcuttia californica E
Orcutt grass, hairy Orcuttia pilosa E
Orcutt grass, Sacramento Orcuttia viscida E
oxytheca, cushenbury Oxytheca parishii var. goodmaniana E
paintbrush, soft-leaved Castilleja mollis E
paintbrush, Tiburon Castilleja affinis ssp. neglecta E
palo colorado Ternstroemia luquillensis E
palo de jazmin Styrax portoricensis E
palo de nigua Cornutia obovata E
palo de ramon Banara vanderbiltii E
palo de rosa Ottoschulzia rhodoxylon E
pamakani Tetramolopium capillare E
pamakani Viola chamissoniana ssp. chamissoniana E
panicgrass, Carter's Panicum fauriei var. carteri E
pauoa Ctenitis squamigera E
pawpaw, beautiful Deeringothamnus pulchellus E
pawpaw, four-petal Asimina tetramera E
pawpaw, Rugel's Deeringothamnus rugelii E
pelos del diablo Aristida portoricensis E
penny-cress, Kneeland Prairie Thlaspi californicum E
pennyroyal, Todsen's Hedeoma todsenii E
penstemon, blowout Penstemon haydenii E
penstemon, blowout Penstemon haydenii E
pentachaeta, Lyon's Pentachaeta lyonii E
pentachaeta, white-rayed Pentachaeta bellidiflora E
peperomia, Wheeler's Peperomia wheeleri E
phacelia, clay Phacelia argillacea E
phacelia, island Phacelia insularis ssp. insularis E
phacelia, North Park Phacelia formosula E
phlox, Texas trailing Phlox nivalis ssp. texensis E
phlox, Yreka Phlox hirsuta E
pilo Hedyotis mannii E
pinkroot, gentian Spigelia gentianoides E
piperia, Yadon's Piperia yadonii E
pitaya, Davis' green Echinocereus viridiflorus var. davisii E
pitcher-plant, Alabama canebrake Sarracenia rubra alabamensis E
pitcher-plant, green Sarracenia oreophila E
pitcher-plant, mountain sweet Sarracenia rubra ssp. jonesii E
plum, scrub Prunus geniculata E
po`e Portulaca sclerocarpa E
polygala, Lewton's Polygala lewtonii E
polygala, tiny Polygala smallii E
Polygonum, Scotts Valley Polygonum hickmanii E
pondberry Lindera melissifolia E
Pondweed, Little Aguja (=Creek) Potamogeton clystocarpus E
popcornflower, rough Plagiobothrys hirtus E
popolo ku mai Solanum incompletum E
poppy, Sacramento prickly Argemone pleiacantha ssp. pinnatisecta E
poppy-mallow, Texas Callirhoe scabriuscula E
potentilla, Hickman's Potentilla hickmanii E
prairie-clover, leafy Dalea foliosa E
prickly-apple, fragrant Cereus eriophorus var. fragrans E
prickly-ash, St. Thomas Zanthoxylum thomasianum E
prickly-ash, St. Thomas Zanthoxylum thomasianum E
pu`uka`a Cyperus trachysanthos E
Pua `ala Brighamia rockii E
quillwort, black spored Isoetes melanospora E
quillwort, Louisiana Isoetes louisianensis E
quillwort, mat-forming Isoetes tegetiformans E
rattleweed, hairy Baptisia arachnifera E
reed-mustard, Barneby Schoenocrambe barnebyi E
reed-mustard, shrubby Schoenocrambe suffrutescens E
remya, Maui Remya mauiensis E
rhododendron, Chapman Rhododendron chapmanii E
ridge-cress, Barneby Lepidium barnebyanum E
rock-cress, Braun's Arabis perstellata E
rock-cress, Hoffmann's Arabis hoffmannii E
rock-cress, McDonald's Arabis mcdonaldiana E
rockcress, Santa Cruz Island Sibara filifolia E
rock-cress, shale barren Arabis serotina E
rosemary, Apalachicola Conradina glabra E
rosemary, Etonia Conradina etonia E
rosemary, short-leaved Conradina brevifolia E
rush-pea, slender Hoffmannseggia tenella E
sandalwood, Lanai (=`iliahi) Santalum freycinetianum var. lanaiense E
sandlace Polygonella myriophylla E
sand-verbena, large-fruited Abronia macrocarpa E
sandwort, Cumberland Arenaria cumberlandensis E
Sandwort, Marsh Arenaria paludicola E
schiedea, Diamond Head Schiedea adamantis E
seablite, California Suaeda californica E
sedge, golden Carex lutea E
sedge, white Carex albida E
silversword, Mauna Loa (=Ka'u) Argyroxiphium kauense E
snakeroot Eryngium cuneifolium E
snowbells, Texas Styrax texanus E
spineflower, Ben Lomond Chorizanthe pungens var. hartwegiana E
spineflower, Howell's Chorizanthe howellii E
spineflower, Orcutt's Chorizanthe orcuttiana E
spineflower, Robust (incl. Scotts Valley) Chorizanthe robusta (incl. vars. robusta and hartwegii) E
spineflower, slender-horned Dodecahema leptoceras E
spineflower, Sonoma Chorizanthe valida E
spurge, deltoid Chamaesyce deltoidea ssp. deltoidea E
stickseed, showy Hackelia venusta E
stonecrop, Lake County Parvisedum leiocarpum E
sumac, Michaux's Rhus michauxii E
sunburst, Hartweg's golden Pseudobahia bahiifolia E
sunflower, San Mateo woolly Eriophyllum latilobum E
sunflower, Schweinitz's Helianthus schweinitzii E
sunshine, Sonoma Blennosperma bakeri E
taraxacum, California Taraxacum californicum E
Tarplant, Gaviota Deinandra increscens ssp. villosa E
thistle, Chorro Creek bog Cirsium fontinale var. obispoense E
thistle, fountain Cirsium fontinale var. fontinale E
thistle, La Graciosa Cirsium loncholepis E
thistle, Loch Lomond coyote Eryngium constancei E
thistle, Suisun Cirsium hydrophilum var. hydrophilum E
thornmint, San Mateo Acanthomintha obovata ssp. duttonii E
torreya, Florida Torreya taxifolia E
trillium, persistent Trillium persistens E
trillium, relict Trillium reliquum E
tuctoria, Greene's Tuctoria greenei E
uhiuhi Caesalpinia kavaiense E
uvillo Eugenia haematocarpa E
vetch, Hawaiian Vicia menziesii E
wahane Pritchardia aylmer-robinsonii E
wallflower, Ben Lomond Erysimum teretifolium E
wallflower, Contra Costa Erysimum capitatum var. angustatum E
wallflower, Menzies' Erysimum menziesii E
Walnut, West Indian Juglans jamaicensis E
warea, wide-leaf Warea amplexifolia E
watercress, Gambel's Rorippa gambellii E
water-umbel, Huachuca Lilaeopsis schaffneriana var. recurva E
water-willow, Cooley's Justicia cooleyi E
wawae`iole Huperzia mannii E
wawae`iole Lycopodium (=Phlegmariurus) nutans E
wild-buckwheat, clay-loving Eriogonum pelinophilum E
wild-rice, Texas Zizania texana E
wire-lettuce, Malheur Stephanomeria malheurensis E
wireweed Polygonella basiramia E
woodland-star, San Clemente Island Lithophragma maximum E
woolly-star, Santa Ana River Eriastrum densifolium ssp. sanctorum E
wooly-threads, San Joaquin Monolopia (=Lembertia) congdonii E
yerba santa, Lompoc Eriodictyon capitatum E
ziziphus, Florida Ziziphus celata E
 
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