A list of endangered plants and lichens, including those on the United States' Endangered Species List.
Abies guatemalensis (Guatemalan fir)<br> Cupressus abramsiana (Santa Cruz cypress) <br> Fitzroya cupressoides (Patagonian cypress)<br> Sequoia sempervirens (coast redwood)<br> Sequoiadendron giganteum (giant redwood)<br> Torreya taxifolia (Florida torreya)
Adenophorus periens (pendant kihi fern)<br> Adiantum vivesii (Puerto Rico maidenhair)<br> Ctenitis squamigera (Pauoa)<br> Cyathea dryopteroides (elfin tree fern)<br> Diplazium molokaiense (Molokai twinsorus fern)<br> Doryopteris angelica (Kauai digit fern)<br> Dryopteris crinalis (serpent woodfern)<br> Elaphoglossum serpens (no common name)<br> Isoetes louisianensis (Louisiana quillwort)<br> Isoetes melanospora (black spored quillwort)<br> Isoetes tegetiformans (mat-forming quillwort)<br> Marsilea villosa (Ihi`ihi)
Cladonia perforata (Florida perforate cladonia) <br> Gymnoderma lineare (rock gnome lichen)
Abronia macrocarpa (large-fruited sand verbena)<br> Abutilon eremitopetalum (hidden-petal Indian mallow)<br> Abutilon menziesii (koûoloaûula)<br> Abutilon sandwicense (greenflower Indian mallow)<br> Acaena exigua (liliwai)<br> Acanthomintha ilicifolia (San Diego thornmint)<br> Achyranthes mutica (blunt chaff flower)<br> Aconitum noveboracense (northern blue monkshood)<br> Aeschynomene virginica (Virginia jointvetch)<br> Agalinis acuta (sandplain gerardia)<br> Alectryon macrococcus (mÃÂhoe)<br> Allium munzii (Munz' onion)<br> Alsinidendron lychnoides (kuawawaenohu)<br> Alsinidendron obovatum (Waianae Range alsinidendron)<br> Alsinidendron trinerve (three-nerved alsinidendron)<br> Alsinidendron viscosum (climbing alsinidendron)<br> Amaranthus brownii (Brown's pigweed)<br> Amaranthus pumilus (seabeach amaranth)<br> Ambrosia cheiranthifolia (South Texas ambrosia)<br> Ambrosia pumila (San Diego ambrosia)<br> Amsinckia grandiflora (large-flowered fiddleneck)<br> Amsonia kearneyana (Kearney's bluestar)<br> Apios priceana (Price's potato-bean)<br> Arabis mcdonaldiana (McDonald's rockcress)<br> Arabis perstellata (Braun's rockcress)<br> Arabis serotina (shale barren rockcress)<br> Arctostaphylos confertiflora (Santa Rosa Island manzanita)<br> Arctostaphylos morroensis (Morro manzanita)<br> Arctostaphylos myrtifolia (Ione manzanita)<br> Arctostaphylos pallida (pallid manzanita)<br> Arenaria paludicola (marsh sandwort)<br> Arenaria ursina (Bear Valley sandwort)<br> Argyroxiphium kauense (Mauna Loa silversword)<br> Aristida chaseae (Chase's threeawn)<br> Aristida portoricensis (pelos del diablo)<br> Asclepias meadii (Mead's milkweed)<br> Asclepias welshii (Welsh's milkweed)<br> Asimina pulchella (beautiful pawpaw)<br> Asimina rugelii (Rugel's pawpaw)<br> Asimina tetramera (four-petal pawpaw)<br> Astelia waialealae (pa`iniu)<br> Astragalus albens (Cushenbury milkvetch)<br> Astragalus ampullarioides (Shivwits milkvetch)<br> Astragalus applegatei (Applegate's milkvetch)<br> Astragalus bibullatus (Pyne's ground plum)<br> Astragalus brauntonii (Braunton's milkvetch)<br> Astragalus claranus (Clara Hunt's milkvetch<br> Astragalus desereticus (Deseret milkvetch)<br> Astragalus holmgreniorum (Holmgren's milkvetch)<br> Astragalus humillimus (Mancos milkvetch)<br> Astragalus jaegerianus (Lane Mountain milkvetch)<br> Astragalus osterhoutii (Osterhout milkvetch)<br> Astragalus phoenix (Ash Meadows milkvetch)<br> Astragalus tricarinatus (triple-rib milkvetch)<br> Astrophytum asterias (sand dollar cactus)<br> Auerodendron pauciflorum (turtlefat)<br> Ayenia limitaris (Texas ayenia)<br> Baccharis vanessae (Encinitas baccharis)<br> Banara vanderbiltii (palo de ramon)<br> Baptisia arachnifera (hairy rattleweed)<br> Betula uber (Virginia roundleaf birch)<br> Bidens wiebkei (Molokaûi koûokoûolau)<br> Blennosperma bakeri (Sonoma sunshine)<br> Boechera hoffmannii (Hoffmann's rockcress)<br> Boltonia decurrens (decurrent false aster)<br> Bonamia grandiflora (Florida lady's nightcap)<br> Bonamia menziesii (Hawaii lady's nightcap) <br> Brighamia insignis (cabbage on a stick)<br> Brighamia rockii (pua 'ala)<br> Brodiaea filifolia (threadleaf brodiaea)<br> Brodiaea pallida (Chinese Camp brodiaea)<br> Buxus vahlii (Vahl's boxwood)<br> Caesalpinia kavaiensis (uhiuhi)<br> Callicarpa ampla (capa rose)<br> Callirhoe scabriuscula (Texas poppy mallow)<br> Calochortus tiburonensis (Tiburon Mariposa lily)<br> Calyptranthes thomasiana (Thomas' lidflower)<br> Cistanthe pulchella (Mariposa pussypaws)<br> Calyptronoma rivalis (palma de manaca)<br> Calystegia stebbinsii (Stebbins' false bindweed)<br> Camissonia benitensis (San Benito evening primrose)<br> Campanula robinsiae (Brooksville bellflower)<br> Canavalia molokaiensis (puakauhi)<br> Canavalia napaliensis (MÃÂkaha Valley Jack-bean)<br> Cardamine micranthera (small-anthered bittercress)<br> Carex albida (white sedge)<br> Carex lutea (golden sedge)<br> Carex specuicola (Navajo sedge)<br> Castilleja cinerea (ashgray Indian paintbrush)<br> Castilleja grisea (San Clemente Island Indian paintbrush)<br> Castilleja levisecta (golden paintbrush)<br> Castilleja mollis (softleaf Indian paintbrush)<br> Catesbaea melanocarpa (tropical lilythorn)<br> Caulanthus californicus (California jewelflower)<br> Ceanothus ferrisiae (coyote ceanothus)<br> Ceanothus ophiochilus (Vail Lake ceanothus)<br> Ceanothus roderickii (Pine Hill ceanothus)<br> Cenchrus agrimonioides (kÃÂmanomano)<br> Cercocarpus traskiae (Santa Catalina Island mountain-mahogany)<br> Charpentiera densiflora (dense-flowered pÃÂpala)<br> Chlorogalum purpureum (purple amole)<br> Chorizanthe howellii (Mendocino spineflower)<br> Chorizanthe orcuttiana (San Diego spineflower)<br> Chorizanthe robusta (robust spineflower)<br> Chorizanthe valida (Sonoma spineflower)<br> Chrysopsis floridana (Florida golden aster)<br> Cirsium loncholepis (La Graciosa thistle)<br> Cirsium pitcheri (Pitcher's thistle)<br> Cirsium vinaceum (Sacramento Mountains thistle)<br> Clarkia franciscana (Presidio clarkia)<br> Clarkia imbricata (Vine Hill clarkia)<br> Clarkia springvillensis (Springville clarkia)<br> Clematis morefieldii (Morefield's leather flower)<br> Clematis socialis (Alabama leather flower)<br> Clermontia drepanomorpha (Kohala Mountain clermontia)<br> Clermontia lindseyana (hillside clermontia)<br> Clermontia peleana (Pele clermontia)<br> Clermontia pyrularia (pear clermontia)<br> Clermontia samuelii (Hana clermontia)<br> Clitoria fragrans (pigeon wings)<br> Colubrina oppositifolia (Kauila)<br> Conradina brevifolia (short-leaved rosemary)<br> Conradina etonia (Etonia rosemary)<br> Conradina glabra (Apalachicola rosemary)<br> Conradina verticillata (Cumberland rosemary)<br> Cordia bellonis (serpentine manjack)<br> Cordylanthus maritimus (salt marsh bird's beak)<br> Cordylanthus palmatus (palmatus bird's beak)<br> Cornutia obovata (palo de nigua)<br> Coryphantha ramillosa (bunched cory cactus)<br> Cranichis ricartii (Puerto Rico helmet orchid)<br> Crotalaria avonensis (Avon Park rattlebox)<br> Cryptantha crassipes (Terlingua Creek cat's-eye)<br> Cyanea acuminata (Honolulu cyanea)<br> Cyanea asarifolia (gingerleaf cyanea)<br> Cyanea copelandii (treetrunk cyanea)<br> Cyanea crispa (Koolau Range rollandia)<br> Cyanea dolichopoda (haha)<br> Cyanea dunbariae (ravine cyanea)<br> Cyanea eleeleensis (Eleele cyanea)<br> Cyanea glabra (smooth cyanea)<br> Cyanea grimesiana (splitleaf cyanea)<br> Cyanea hamatiflora (wetforest cyanea)<br> Cyanea humboldtiana (Oahu rollandia)<br> Cyanea kolekoleensis ('oha)<br> Cyanea koolauensis (Palolo Valley rollandia)<br> Cyanea kuhihewa (Limahuli Valley cyanea)<br> Cyanea lobata (Waihee Valley cyanea)<br> Cyanea longiflora (ridge rollandia)<br> Cyanea mannii (Mann's cyanea)<br> Cyanea mceldowneyi (McEldowney cyanea)<br> Cyanea pinnatifida (sharktail cyanea)<br> Cyanea platyphylla (puna cyanea)<br> Cyanea procera (Molokai cyanea)<br> Cyanea recta (upright cyanea)<br> Cyanea remyi (Remy's cyanea)<br> Cyanea rivularis (plateau cyanea)<br> Cyanea shipmanii (Shipman's cyanea)<br> Cyanea st.-johnii (St. John's rollandia)<br> Cyanea stictophylla (Kaiholena cyanea)<br> Cyanea superba (Mt. Kaala cyanea)<br> Cyanea truncata (Punaluu cyanea)<br> Cyperus trachysanthos (pu`uka`a)<br> Cyrtandra crenata (Kahana Valley cyrtandra)<br> Cyrtandra cyaneoides (mapele)<br> Cyrtandra dentata (mountain cyrtandra)<br> Cyrtandra giffardii (Giffard's cyrtandra)<br> Cyrtandra munroi (Lanaihale cyrtandra)<br> Cyrtandra oenobarba (shaggystem cyrtandra)<br> Cyrtandra paliku (cliffside cyrtandra)<br> Cyrtandra polyantha (Niu Valley cyrtandra)<br> Cyrtandra subumbellata (parasol cyrtandra)<br> Cyrtandra tintinnabula (Laupahoehoe cyrtandra)<br> Cyrtandra viridiflora (ha`iwale)<br> Dalea foliosa (leafy prairie clover)<br> Daphnopsis hellerana (no common name)<br> Deinandra conjugens (Otay tarweed)<br> Delissea rhytidosperma (Kauai delissea)<br> Delissea subcordata (Ko'olau Range delissea)<br> Delphinium bakeri (Baker's larkspur)<br> Delphinium luteum (yellow larkspur)<br> Dicerandra christmanii (Garrett's mint)<br> Dicerandra cornutissima (longspurred mint)<br> Dicerandra frutescens (scrub balm)<br> Dicerandra immaculata (Lakela's mint)<br> Diplacus vandenbergensis (Vandenberg monkeyflower)<br> Dubautia herbstobatae (na'ena'e)<br> Dubautia kalalauensis (na'ena'e)<br> Dubautia kenwoodii (na'ena'e)<br> Dubautia latifolia (koholapehu)<br> Dubautia pauciflorula (Wahiawa bog dubautia)<br> Dubautia plantaginea (plantainleaf dubautia)<br> Dubautia waialealae (Wai'ale'ale dubautia)<br> Dudleya nesiotica (Santa Cruz Island liveforever)<br> Dudleya stolonifera (Laguna Beach liveforever)<br> Dudleya traskiae (Santa Barbara Island liveforever)<br> Dudleya verityi (Verity's liveforever)<br> Echinacea laevigata (smooth purple coneflower)<br> Echinacea tennesseensis (Tennessee coneflower)<br> Echinocactus horizonthalonius (horse maimer)<br> Eragrostis fosbergii (Fosberg's love grass)<br> Erigeron parishii (Parish's fleabane)<br> Erigeron rhizomatus (Zuni fleabane)<br> Eriodictyon altissimum (Indian Knob mountainbalm)<br> Eriodictyon capitatum (Lompoc yerba santa)<br> Eriogonum apricum (Ione buckwheat)<br> Eriogonum gypsophilum (Seven River Hills buckwheat)<br> Eriogonum pelinophilum (clay-loving wild buckwheat)<br> Eryngium cuneifolium (wedgeleaf snakeroot)<br> Erysimum menziesii (Menzies' wallflower)<br> Erysimum teretifolium (Ben Lomond wallflower)<br> Erythronium propullans (Minnesota dwarf trout lily)<br> Escobaria minima (Nellie cory cactus)<br> Escobaria robbinsorum (Cochise pincushion cactus)<br> Escobaria sneedii (carpet foxtail cactus)<br> Eugenia haematocarpa (uvillo)<br> Eugenia koolauensis (nioi)<br> Eugenia woodburyana (Woodbury's stopper)<br> Euphorbia deppeana (Oahu sandmat)<br> Euphorbia eleanoriae (NàPali sandmat)<br> Euphorbia garberi (Garber's spurge)<br> Euphorbia haeleeleana (Kauai spurge)<br> Euphorbia halemanui (Kauai sandmat)<br> Euphorbia herbstii (Herbst's sandmat)<br> Euphorbia hooveri (Hoover's sandmat)<br> Euphorbia kuwaleana (kokomalei)<br> Euphorbia rockii (Koolau Range sandmat)<br> Euphorbia telephioides (Telephus spurge)<br> Eutrema penlandii (Penland's alpine fen mustard)<br> Exocarpos luteolus (heau)<br> Flueggea neowawraea (mÃÂhamehame)<br> Frankenia johnstonii (Johnston's seaheath)<br> Fremontodendron mexicanum (Mexican flannelbush)<br> Fritillaria gentneri (Gentner's fritillary)<br> Galactia smallii (Small's milkpea)<br> Galium buxifolium (box bedstraw)<br> Gardenia brighamii (nÃÂnà «)<br> Gardenia mannii (nÃÂnà «)<br> Geocarpon minimum (tinytim)<br> Geranium arboreum (Hawaiian red-flowered geranium)<br> Geranium kauaiense (Kauai geranium)<br> Geranium multiflorum (manyflowered cranesbill)<br> Gesneria pauciflora (yerba maricao de cueva)<br> Geum radiatum (spreading avens)<br> Goetzea elegans (matabuey)<br> Gouania hillebrandii (hairyfruit chewstick)<br> Gouania meyenii (smoothfruit chewstick)<br> Gouania vitifolia (Oahu chewstick)<br> Gratiola amphiantha (pool sprite)<br> Grindelia fraxino-pratensis (Ash Meadows gumplant)<br> Hackelia venusta (showy stickseed)<br> Haplostachys haplostachya (honohono)<br> Harperocallis flava (Harper's beauty)<br> Harrisia fragrans (fragrant prickly apple)<br> Harrisia portoricensis (higo chumbo)<br> Hedeoma todsenii (Todsen's pennyroyal)<br> Juglans cinerea (butternut tree)<br> Kadua cookiana (Cook's bluet)<br> Kadua cordata (kopa)<br> Kadua coriacea ('kio'ele)<br> Kadua degeneri (Waianae Range starviolet)<br> Kadua laxiflora (pilo)<br> Kadua parvula (rockface starviolet)<br> Kadua st.-johnii (NàPali beach starviolet)<br> Helenium virginicum (Virginia sneezeweed)<br> Mahonia nevinii (Nevin's barberry)<br> Minuartia cumberlandensis (Cumberland sandwort)<br> Pedicularis furbishiae (Furbish's lousewort) Schenkia sebaeoides (lavaslope centaury)<br> Sclerocactus mariposensis (syn. Echinomastus mariposensis, golfball cactus)<br> Zeltnera namophila (spring-loving centaury)<br> Zizania texana (Texas wild rice)