|
|
|
|
Plant List
Indexed Alphabetically by Common Name
D-E
For a list of plants indexed by Scientific Name, click here
--Please wait while data loads--
| National Common Name | Scientific Name with Author | Symbol | Family | |
| dacite manzanita | Arctostaphylos tomentosa (Pursh) Lindl. ssp. daciticola P.V. Wells | ARTOD2 | Ericaceae | |
| daddy longlegs orchid | Brassavola cucullata (L.) R. Br. ex Ait. f. | BRCU | Orchidaceae | |
| daffodil garlic | Allium neopolitanum Cirillo | ALNE8 | Liliaceae | |
| daggerpod | Anelsonia eurycarpa (Gray) J.F. Macbr. & Payson | ANEU | Brassicaceae | |
| Dahl's cup lichen | Cladonia dahliana Kristinsson | CLDA3 | Cladoniaceae | |
| Dailey's columbine | Aquilegia caerulea James var. daileyae Eastw. | AQCAD | Ranunculaceae | |
| dainty gilia | Aliciella micromeria (Gray) J.M. Porter | ALMI10 | Polemoniaceae | |
| daisy | Chrysanthemum L. | CHRYS2 | Asteraceae | |
| daisy | Chrysanthemum majus (Desf.) Asch. | CHMA17 | Asteraceae | |
| Dalby myall | Acacia stenophylla A. Cunn. ex Benth. | ACST5 | Fabaceae | |
| Dallas hawthorn | Crataegus dallasiana Sarg. | CRDA3 | Rosaceae | |
| damianita | Chrysactinia mexicana Gray | CHME3 | Asteraceae | |
| dammar pine | Agathis dammara (Lamb.) Rich. | AGDA2 | Araucariaceae | |
| Dane's blood | Campanula glomerata L. | CAGL2 | Campanulaceae | |
| Danish scurvygrass | Cochlearia groenlandica L. | COGR6 | Brassicaceae | |
| darkbrown sedge | Carex atrofusca Schkuhr | CAAT7 | Cyperaceae | |
| darkbrown sedge | Carex atrofusca Schkuhr var. atrofusca | CAATA3 | Cyperaceae | |
| darkbrown sedge | Carex atrofusca Schkuhr var. major (Boeckl.) Raymond | CAATM | Cyperaceae | |
| darkgreen sedge | Carex venusta Dewey | CAVE7 | Cyperaceae | |
| darkgreen sedge | Carex venusta Dewey var. minor Boeckl. | CAVEM | Cyperaceae | |
| darkgreen sedge | Carex venusta Dewey var. venusta | CAVEV | Cyperaceae | |
| darkmargin cracked lichen | Acarospora nigromarginata de Lesd. | ACNI6 | Acarosporaceae | |
| darkred onion | Allium atrorubens S. Wats. | ALAT | Liliaceae | |
| darkred onion | Allium atrorubens S. Wats. var. atrorubens | ALATA | Liliaceae | |
| darkred onion | Allium atrorubens S. Wats. var. cristatum (S. Wats.) McNeal | ALATC | Liliaceae | |
| Darwin's berberis | Berberis darwinii Hook. | BEDA | Berberidaceae | |
| Davidson's blue eyed Mary | Collinsia bartsiifolia Benth. var. davidsonii (Parish) Newsom | COBAD | Scrophulariaceae | |
| Davidson's bractscale | Atriplex serenana A. Nels. var. davidsonii (Standl.) Munz | ATSED | Chenopodiaceae | |
| Davidson's rockcress | Arabis davidsonii Greene | ARDA | Brassicaceae | |
| Davidson's rockcress | Arabis davidsonii Greene var. davidsonii | ARDAD | Brassicaceae | |
| Davidson's rockcress | Arabis davidsonii Greene var. parva Rollins | ARDAP | Brassicaceae | |
| Davidson's saltbush | Atriplex pacifica A. Nels. | ATPA | Chenopodiaceae | |
| Davis' milkweed | Asclepias cryptoceras S. Wats. ssp. davisii (Woods.) Woods. | ASCRD2 | Asclepiadaceae | |
| Davis' sedge | Carex davisii Schwein. & Torr. | CADA | Cyperaceae | |
| Davis' springparsley | Cymopterus davisii R.L. Hartman | CYDA3 | Apiaceae | |
| Davy's centaury | Centaurium davyi (Jepson) Abrams | CEDA | Gentianaceae | |
| Davy's clarkia | Clarkia davyi (Jepson) H.F. & M.E. Lewis | CLDA | Onagraceae | |
| Davy's sedge | Carex davyi Mackenzie | CADA2 | Cyperaceae | |
| Dawson's angelica | Angelica dawsonii S. Wats. | ANDA | Apiaceae | |
| day jessamine | Cestrum diurnum L. | CEDI6 | Solanaceae | |
| dayflower | Commelina L. | COMME | Commelinaceae | |
| dead finish | Acacia tetragonophylla F. Muell. | ACTE8 | Fabaceae | |
| Dealbata's bahia | Bahia absinthifolia Benth. var. dealbata (Gray) Gray | BAABD | Asteraceae | |
| Deam's threeseed mercury | Acalypha deamii (Weatherby) Ahles | ACDE4 | Euphorbiaceae | |
| Deane's milkvetch | Astragalus deanei (Rydb.) Barneby | ASDE | Fabaceae | |
| Deane's wattle | Acacia deanei (R. T. Baker) M. B. Welch et al. | ACDE11 | Fabaceae | |
| Death Valley sandmat | Chamaesyce vallis-mortae Millsp. | CHVA4 | Euphorbiaceae | |
| Death Valley suncup | Camissonia munzii (Raven) Raven | CAMU14 | Onagraceae | |
| Debeque milkvetch | Astragalus debequaeus Welsh | ASDE11 | Fabaceae | |
| debris milkvetch | Astragalus detritalis M.E. Jones | ASDE5 | Fabaceae | |
| deepscar cryptantha | Cryptantha excavata Brandeg. | CREX | Boraginaceae | |
| deepwoods fern | Cnemidaria horrida (L.) K. Presl | CNHO | Cyatheaceae | |
| deepwoods horsebalm | Collinsonia tuberosa Michx. | COTU2 | Lamiaceae | |
| deer fern | Blechnum spicant (L.) Sm. | BLSP | Blechnaceae | |
| deer Indian paintbrush | Castilleja cervina Greenm. | CACE4 | Scrophulariaceae | |
| deer sedge | Carex hallii Olney | CAHA3 | Cyperaceae | |
| deerbrush | Ceanothus integerrimus Hook. & Arn. | CEIN3 | Rhamnaceae | |
| deer's foot | Achlys californica Fukuda & Baker | ACCA6 | Berberidaceae | |
| deflexed eggyolk lichen | Candelariella deflexa (Nyl.) Zahlbr. | CADE23 | Candelariaceae | |
| deformed cup lichen | Cladonia deformis (L.) Hoffm. | CLDE60 | Cladoniaceae | |
| degame | Calycophyllum candidissimum (Vahl) DC. | CACA73 | Rubiaceae | |
| Degener's argyrautia | ×Argyrautia degeneri Sherff [Arygroxiphium grayanum × Dubautia laxa] | ARDE4 | Asteraceae | |
| Degener's cyanea | Cyanea floribunda F. Wimmer | CYFL4 | Campanulaceae | |
| Del Mar manzanita | Arctostaphylos glandulosa Eastw. ssp. crassifolia (Jepson) P.V. Wells | ARGLC4 | Ericaceae | |
| Del Norte manzanita | Arctostaphylos nortensis P.V. Wells | ARNO6 | Ericaceae | |
| delicate arctomia lichen | Arctomia delicatula Th. Fr. | ARDE9 | Arctomiaceae | |
| delicate brachythecium moss | Brachythecium delicatulum Flow. | BRDE9 | Brachytheciaceae | |
| delicate lacefern | Ctenitis latifrons (Brack.) Copeland | CTLA | Dryopteridaceae | |
| Delmarva beggarticks | Bidens bidentoides (Nutt.) Britt. | BIBI3 | Asteraceae | |
| delta maidenhair | Adiantum raddianum K. Presl | ADRA | Pteridaceae | |
| deltoid balsamroot | Balsamorhiza deltoidea Nutt. | BADE2 | Asteraceae | |
| deltoid-bract saltbush | Atriplex subtilis Stutz & Chu | ATSU5 | Chenopodiaceae | |
| dense ayenia | Ayenia microphylla Gray | AYMI | Sterculiaceae | |
| dense false gilyflower | Allophyllum gilioides (Benth.) A.& V. Grant | ALGI | Polemoniaceae | |
| dense false gilyflower | Allophyllum gilioides (Benth.) A.& V. Grant ssp. gilioides | ALGIG | Polemoniaceae | |
| dense false gilyflower | Allophyllum gilioides (Benth.) A.& V. Grant ssp. violaceum (Heller) Day | ALGIV | Polemoniaceae | |
| dense sedge | Carex densa (Bailey) Bailey | CADE8 | Cyperaceae | |
| dense silkybent | Apera interrupta (L.) Beauv. | APIN | Poaceae | |
| dense spleenwort | Asplenium trichomanes L. ssp. densum (Brack.) W.H. Wagner | ASTRD3 | Aspleniaceae | |
| denseflower Indian paintbrush | Castilleja densiflora (Benth.) Chuang & Heckard | CADE29 | Scrophulariaceae | |
| denseflower Indian paintbrush | Castilleja densiflora (Benth.) Chuang & Heckard ssp. densiflora | CADED3 | Scrophulariaceae | |
| denseflower Indian paintbrush | Castilleja densiflora (Benth.) Chuang & Heckard ssp. gracilis (Benth.) Chuang & Heckard | CADEG | Scrophulariaceae | |
| denseleaf pussytoes | Antennaria densifolia Porsild | ANDE9 | Asteraceae | |
| densetuft hairsedge | Bulbostylis capillaris (L.) Kunth ex C.B. Clarke | BUCA2 | Cyperaceae | |
| densetuft hairsedge | Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. antillana (Britt.) T. Koyama | BUCAA | Cyperaceae | |
| densetuft hairsedge | Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. capillaris | BUCAC | Cyperaceae | |
| densewoods hawthorn | Crataegus latebrosa Sarg. | CRLA11 | Rosaceae | |
| dentate clausena | Clausena dentata (Willd.) M. Roemer | CLDE9 | Rutaceae | |
| dentnut cryptantha | Cryptantha abata I.M. Johnston | CRAB2 | Boraginaceae | |
| Deodar cedar | Cedrus deodara (Roxb.) G. Don f. | CEDE2 | Pinaceae | |
| depauperate milkvetch | Astragalus pauperculus Greene | ASPA15 | Fabaceae | |
| Descanso milkvetch | Astragalus oocarpus Gray | ASOO2 | Fabaceae | |
| deseret milkvetch | Astragalus desereticus Barneby | ASDE2 | Fabaceae | |
| desert agave | Agave deserti Engelm. | AGDE | Agavaceae | |
| desert agave | Agave deserti Engelm. ssp. deserti | AGDED | Agavaceae | |
| desert agave | Agave deserti Engelm. ssp. simplex Gentry | AGDES | Agavaceae | |
| desert aspicilia | Aspicilia desertorum (Krempelh.) Mereschk. | ASDE19 | Hymeneliaceae | |
| desert baccharis | Baccharis sergiloides Gray | BASE | Asteraceae | |
| desert bearpoppy | Arctomecon merriamii Coville | ARME2 | Papaveraceae | |
| desert bird's-beak | Cordylanthus eremicus (Coville & Morton) Munz | COER6 | Scrophulariaceae | |
| desert bird's-beak | Cordylanthus eremicus (Coville & Morton) Munz ssp. eremicus | COERE2 | Scrophulariaceae | |
| desert brickellbush | Brickellia desertorum Coville | BRDE3 | Asteraceae | |
| desert candle | Caulanthus inflatus S. Wats. | CAIN15 | Brassicaceae | |
| desert ceanothus | Ceanothus greggii Gray | CEGR | Rhamnaceae | |
| desert ceanothus | Ceanothus greggii Gray var. franklinii Welsh | CEGRF | Rhamnaceae | |
| desert ceanothus | Ceanothus greggii Gray var. greggii | CEGRG2 | Rhamnaceae | |
| desert ceanothus | Ceanothus greggii Gray var. perplexans (Trel.) Jepson | CEGRP | Rhamnaceae | |
| desert centaury | Centaurium exaltatum (Griseb.) W. Wight ex Piper | CEEX | Gentianaceae | |
| desert columbine | Aquilegia desertorum (M.E. Jones) Cockerell ex Heller | AQDE | Ranunculaceae | |
| desert cryptantha | Cryptantha similis Mathew & Raven | CRSI4 | Boraginaceae | |
| desert date | Balanites aegyptiaca (L.) Del. | BAAE | Zygophyllaceae | |
| desert dodder | Cuscuta denticulata Engelm. | CUDE2 | Cuscutaceae | |
| desert dodder | Cuscuta denticulata Engelm. var. denticulata | CUDED | Cuscutaceae | |
| desert false indigo | Amorpha fruticosa L. | AMFR | Fabaceae | |
| desert foxglove | Brachystigma Pennell | BRACH5 | Scrophulariaceae | |
| desert goosefoot | Chenopodium pratericola Rydb. | CHPR5 | Chenopodiaceae | |
| desert hawthorn | Crataegus viridis L. var. desertorum (Sarg.) Keeney & Enquist | CRVID | Rosaceae | |
| desert honeysuckle | Anisacanthus Nees | ANISA | Acanthaceae | |
| desert madwort | Alyssum desertorum Stapf | ALDE | Brassicaceae | |
| desert madwort | Alyssum desertorum Stapf var. desertorum | ALDED | Brassicaceae | |
| desert madwort | Alyssum desertorum Stapf var. himalayensis Dudley | ALDEH | Brassicaceae | |
| desert marigold | Baileya Harvey & Gray ex Gray | BAILE | Asteraceae | |
| desert marigold | Baileya multiradiata Harvey & Gray ex Gray | BAMU | Asteraceae | |
| desert mariposa lily | Calochortus kennedyi Porter | CAKE | Liliaceae | |
| desert mariposa lily | Calochortus kennedyi Porter var. kennedyi | CAKEK2 | Liliaceae | |
| desert mariposa lily | Calochortus kennedyi Porter var. munzii Jepson | CAKEM | Liliaceae | |
| desert milkweed | Asclepias erosa Torr. | ASER2 | Asclepiadaceae | |
| desert myrtlecroton | Bernardia obovata I.M. Johnston | BEOB | Euphorbiaceae | |
| desert needlegrass | Achnatherum speciosum (Trin. & Rupr.) Barkworth | ACSP12 | Poaceae | |
| desert pale gilia | Aliciella hutchinsifolia (Rydb.) J.M. Porter | ALHU6 | Polemoniaceae | |
| desert pussypaws | Cistanthe ambigua (S. Wats.) Hershkovitz | CIAM3 | Portulacaceae | |
| desert rockcress | Arabis lignifera A. Nels. | ARLI | Brassicaceae | |
| desert rose | Adenium Roem. & Schult. | ADENI | Apocynaceae | |
| desert sand verbena | Abronia villosa S. Wats. | ABVI | Nyctaginaceae | |
| desert sand verbena | Abronia villosa S. Wats. var. aurita (Abrams) Jepson | ABVIA | Nyctaginaceae | |
| desert sand verbena | Abronia villosa S. Wats. var. villosa | ABVIV | Nyctaginaceae | |
| desert silverbush | Argythamnia claryana Jepson | ARCL2 | Euphorbiaceae | |
| desert springparsley | Cymopterus deserticola Brandeg. | CYDE | Apiaceae | |
| desert starvine | Brandegea bigelovii (S. Wats.) Cogn. | BRBI | Cucurbitaceae | |
| desert suncup | Camissonia boothii (Dougl. ex Lehm.) Raven ssp. desertorum (Munz) Raven | CABOD2 | Onagraceae | |
| desert sweet | Chamaebatiaria (Porter) Maxim. | CHAMA2 | Rosaceae | |
| desert sweet | Chamaebatiaria millefolium (Torr.) Maxim. | CHMI2 | Rosaceae | |
| desert thistle | Cirsium aridum Dorn | CIAR9 | Asteraceae | |
| desert wheatgrass | Agropyron desertorum (Fisch. ex Link) J.A. Schultes | AGDE2 | Poaceae | |
| desert willow | Chilopsis D. Don | CHILO | Bignoniaceae | |
| desert willow | Chilopsis linearis (Cav.) Sweet | CHLI2 | Bignoniaceae | |
| desert willow | Chilopsis linearis (Cav.) Sweet ssp. arcuata (Fosberg) Henrickson | CHLIA | Bignoniaceae | |
| desert willow | Chilopsis linearis (Cav.) Sweet ssp. linearis | CHLIL2 | Bignoniaceae | |
| desertbroom | Baccharis sarothroides Gray | BASA2 | Asteraceae | |
| desertgrass | Blepharidachne Hack. | BLEPH | Poaceae | |
| desertholly | Atriplex hymenelytra (Torr.) S. Wats. | ATHY | Chenopodiaceae | |
| desertmountain blue eyed Mary | Collinsia callosa Parish | COCA3 | Scrophulariaceae | |
| desertpeony | Acourtia D. Don | ACOUR | Asteraceae | |
| desert-rose | Adenium obesum (Forssk.) Roem. & Schult. | ADOB2 | Apocynaceae | |
| desolation columbine | Aquilegia desolatica Welsh & Atwood | AQDE2 | Ranunculaceae | |
| devil's beggartick | Bidens frondosa L. | BIFR | Asteraceae | |
| devil's darning needles | Clematis virginiana L. | CLVI5 | Ranunculaceae | |
| devil's gut | Cassytha filiformis L. | CAFI4 | Lauraceae | |
| devil's horsewhip | Achyranthes aspera L. | ACAS | Amaranthaceae | |
| devil's horsewhip | Achyranthes aspera L. var. aspera | ACASA | Amaranthaceae | |
| devil's horsewhip | Achyranthes aspera L. var. pubescens (Moq.) Townsend | ACASP | Amaranthaceae | |
| devil's spineflower | Chorizanthe rigida (Torr.) Torr. & Gray | CHRI | Polygonaceae | |
| devil's tongue | Amorphophallus konjac K. Koch | AMKO2 | Araceae | |
| devil's walkingstick | Aralia spinosa L. | ARSP2 | Araliaceae | |
| deviltree | Alstonia macrophylla Wallich ex G. Don | ALMA16 | Apocynaceae | |
| Dewey sedge | Carex deweyana Schwein. | CADE9 | Cyperaceae | |
| Dewey sedge | Carex deweyana Schwein. var. deweyana | CADED4 | Cyperaceae | |
| diamond clarkia | Clarkia rhomboidea Dougl. ex Hook. | CLRH | Onagraceae | |
| diamond creepingfern | Bolbitis aliena (Sw.) Alston | BOAL2 | Dryopteridaceae | |
| diamond maidenhair | Adiantum trapeziforme L. | ADTR4 | Pteridaceae | |
| diamond spleenwort | Asplenium rhomboideum Brack. | ASRH3 | Aspleniaceae | |
| Diamond Valley suncup | Camissonia gouldii Raven | CAGO | Onagraceae | |
| diamondleaf lacefern | Ctenitis hirta (Sw.) Ching | CTHI | Dryopteridaceae | |
| diamondleaf lacefern | Ctenitis hirta (Sw.) Ching var. hirta (Sw.) Ching [excluded] | CTHIH2 | Dryopteridaceae | |
| diamondleaf lacefern | Ctenitis hirta (Sw.) Ching var. portoricana (C. Christens.) Proctor | CTHIP | Dryopteridaceae | |
| Diehl's milkvetch | Astragalus flexuosus (Hook.) Dougl. ex G. Don var. diehlii (M.E. Jones) Barneby | ASFLD | Fabaceae | |
| Diels' cotoneaster | Cotoneaster dielsianus E. Pritz. | CODI16 | Rosaceae | |
| different-nerve sedge | Carex heteroneura W. Boott | CAHE8 | Cyperaceae | |
| different-nerve sedge | Carex heteroneura W. Boott var. brevisquama F.J. Herm. | CAHEB | Cyperaceae | |
| different-nerve sedge | Carex heteroneura W. Boott var. epapillosa (Mackenzie) F.J. Herm. | CAHEE | Cyperaceae | |
| different-nerve sedge | Carex heteroneura W. Boott var. heteroneura | CAHEH3 | Cyperaceae | |
| different-spike sedge | Carex heterostachya Bung | CAHE27 | Cyperaceae | |
| diffuse collomia | Collomia tenella Gray | COTE | Polemoniaceae | |
| diffuse dot lichen | Arthonia diffusa Nyl. | ARDI18 | Arthoniaceae | |
| diffuse knapweed | Centaurea diffusa Lam. | CEDI3 | Asteraceae | |
| diffuse spineflower | Chorizanthe diffusa Benth. | CHDI3 | Polygonaceae | |
| diffused flatsedge | Cyperus diffusus Vahl | CYDI12 | Cyperaceae | |
| diffuseflower evening-primrose | Camissonia subacaulis (Pursh) Raven | CASU18 | Onagraceae | |
| dill | Anethum graveolens L. | ANGR2 | Apiaceae | |
| dill | Anethum L. | ANETH | Apiaceae | |
| dill daisy | Argyranthemum foeniculum (Willd.) Schultz-Bip. | ARFO7 | Asteraceae | |
| dill daisy | Argyranthemum Webb | ARGYR3 | Asteraceae | |
| diminutive chryso-hypnum moss | Chryso-hypnum diminutivum (Hampe) Buck | CHDI8 | Hypnaceae | |
| Dinosaur milkvetch | Astragalus saurinus Barneby | ASSA5 | Fabaceae | |
| dioecious sedge | Carex sterilis Willd. | CAST16 | Cyperaceae | |
| Diogenes' lantern | Calochortus amabilis Purdy | CAAM3 | Liliaceae | |
| disc lichen | Buellia aethalia (Ach.) Th. Fr. | BUAE | Physciaceae | |
| disc lichen | Buellia amphidexia Imshaug ex R. C. Harris | BUAM3 | Physciaceae | |
| disc lichen | Buellia badia (Fr.) A. Massal. | BUBA3 | Physciaceae | |
| disc lichen | Buellia bolacina Tuck. | BUBO | Physciaceae | |
| disc lichen | Buellia calcariaecola de Lesd. | BUCA7 | Physciaceae | |
| disc lichen | Buellia caloosensis Tuck. | BUCA8 | Physciaceae | |
| disc lichen | Buellia capitis-regnum W. A. Weber | BUCA9 | Physciaceae | |
| disc lichen | Buellia catasema (Tuck.) Tuck. | BUCA10 | Physciaceae | |
| disc lichen | Buellia coccinea (Fee) Aptroot | BUCO2 | Physciaceae | |
| disc lichen | Buellia curatellae Malme | BUCU3 | Physciaceae | |
| disc lichen | Buellia De Not. | BUELL | Physciaceae | |
| disc lichen | Buellia dialyta (Nyl.) Tuck. | BUDI2 | Physciaceae | |
| disc lichen | Buellia disciformis (Fr.) Mudd | BUDI60 | Physciaceae | |
| disc lichen | Buellia elizae (Tuck.) Tuck. | BUEL3 | Physciaceae | |
| disc lichen | Buellia epigaea (Pers.) Tuck. | BUEP | Physciaceae | |
| disc lichen | Buellia erubescens Arnold | BUER2 | Physciaceae | |
| disc lichen | Buellia fimbriata (Tuck.) Imshaug | BUFI | Physciaceae | |
| disc lichen | Buellia griseovirens (Turner & Borrer ex Sm.) Almb. | BUGR2 | Physciaceae | |
| disc lichen | Buellia halonia (Ach.) Tuck. | BUHA2 | Physciaceae | |
| disc lichen | Buellia insignis (Nageli ex Hepp) Th. Fr. | BUIN | Physciaceae | |
| disc lichen | Buellia jugorum (Arnold) Arnold | BUJU3 | Physciaceae | |
| disc lichen | Buellia lacteoidea de Lesd. | BULA5 | Physciaceae | |
| disc lichen | Buellia lauricassiae (Fee) Mull. Arg. | BULA6 | Physciaceae | |
| disc lichen | Buellia lepidastra (Tuck.) Tuck. | BULE2 | Physciaceae | |
| disc lichen | Buellia leptocline (Flotow) A. Massal. | BULE3 | Physciaceae | |
| disc lichen | Buellia mamillana (Tuck.) W. A. Weber | BUMA2 | Physciaceae | |
| disc lichen | Buellia melanochroa (Krempelh.) Mull. Arg. | BUME2 | Physciaceae | |
| disc lichen | Buellia microbola (Tuck. ex Fink) Sheard | BUMI3 | Physciaceae | |
| disc lichen | Buellia modesta (Krempelh.) Mull. Arg. | BUMO3 | Physciaceae | |
| disc lichen | Buellia nantiana de Lesd. | BUNA | Physciaceae | |
| disc lichen | Buellia notabilis Lynge | BUNO | Physciaceae | |
| disc lichen | Buellia ocellata (Flotow) Korber | BUOC | Physciaceae | |
| disc lichen | Buellia oidalea (Nyl.) Tuck. | BUOI | Physciaceae | |
| disc lichen | Buellia pachnidisca R. C. Harris | BUPA3 | Physciaceae | |
| disc lichen | Buellia papillata (Sommerf.) Tuck. | BUPA60 | Physciaceae | |
| disc lichen | Buellia placodiomorpha Vainio | BUPL | Physciaceae | |
| disc lichen | Buellia pulverulenta (Anzi) Jatta | BUPU2 | Physciaceae | |
| disc lichen | Buellia retrovertens Tuck. | BURE2 | Physciaceae | |
| disc lichen | Buellia rubifaciens R. C. Harris | BURU4 | Physciaceae | |
| disc lichen | Buellia saurina W. A. Weber | BUSA3 | Physciaceae | |
| disc lichen | Buellia saxicola de Lesd. | BUSA4 | Physciaceae | |
| disc lichen | Buellia semitensis Tuck. | BUSE4 | Physciaceae | |
| disc lichen | Buellia silicicola de Lesd. | BUSI2 | Physciaceae | |
| disc lichen | Buellia smaragdula de Lesd. | BUSM2 | Physciaceae | |
| disc lichen | Buellia spuria (Schaerer) Anzi | BUSP2 | Physciaceae | |
| disc lichen | Buellia stellulata (Taylor) Mudd | BUST2 | Physciaceae | |
| disc lichen | Buellia stigmaea Tuck. | BUST3 | Physciaceae | |
| disc lichen | Buellia stigmatea Korber | BUST4 | Physciaceae | |
| disc lichen | Buellia triphragmioides Anzi | BUTR2 | Physciaceae | |
| disc lichen | Buellia turgescens Tuck. | BUTU | Physciaceae | |
| disc lichen | Buellia uberior Anzi | BUUB | Physciaceae | |
| disc lichen | Buellia vernicoma (Tuck.) Tuck. | BUVE2 | Physciaceae | |
| disc lichen | Buellia vilis Th. Fr. | BUVI | Physciaceae | |
| discolor orange lichen | Caloplaca discolor (Willey) Fink | CADI33 | Teloschistaceae | |
| disjunct coenogonium lichen | Coenogonium disjunctum Nyl. | CODI12 | Gyalectaceae | |
| disk waterhyssop | Bacopa rotundifolia (Michx.) Wettst. | BARO | Scrophulariaceae | |
| dispersed dot lichen | Arthonia dispersa (Schrader) Nyl. | ARDI20 | Arthoniaceae | |
| dispersed eggyolk lichen | Candelariella dispersa (Rasanen) Hakul. | CADI35 | Candelariaceae | |
| dispersed orange lichen | Caloplaca dispersa de Lesd. | CADI34 | Teloschistaceae | |
| distaff thistle | Carthamus L. | CARTH | Asteraceae | |
| distant sedge | Carex distans L. | CADI27 | Cyperaceae | |
| distinct hawthorn | Crataegus distincta Kruschke | CRDI11 | Rosaceae | |
| ditch reedgrass | Calamagrostis scopulorum M.E. Jones | CASC | Poaceae | |
| divi divi | Caesalpinia coriaria (Jacq.) Willd. | CACO28 | Fabaceae | |
| divided rockcress | Arabis schistacea Rollins | ARSC2 | Brassicaceae | |
| Dixie grapefern | Botrychium jenmanii Underwood | BOJE | Ophioglossaceae | |
| dixie hawthorn | Crataegus arrogans Beadle | CRAR8 | Rosaceae | |
| dixie sandmat | Chamaesyce bombensis (Jacq.) Dugand | CHBO7 | Euphorbiaceae | |
| Dixie sedge | Carex communis Bailey var. amplisquama (F.J. Herm.) J. Rettig | CACOA2 | Cyperaceae | |
| djave | Baillonella toxisperma Pierre | BATO3 | Sapotaceae | |
| dodder | Cuscuta L. | CUSCU | Cuscutaceae | |
| Dodge's anema lichen | Anema dodgei Herre | ANDO4 | Lichinaceae | |
| Dodge's hawthorn | Crataegus dodgei Ashe | CRDO3 | Rosaceae | |
| dogbane | Apocynum L. | APOCY | Apocynaceae | |
| dogfennel | Chamaemelum P. Mill. | CHAMA11 | Asteraceae | |
| dogstail grass | Cynosurus L. | CYNOS2 | Poaceae | |
| dogtail | Buddleja asiatica Lour. | BUAS | Buddlejaceae | |
| dogweed | Adenophyllum Pers. | ADENO5 | Asteraceae | |
| dogwood | Cornus L. | CORNU | Cornaceae | |
| doll's daisy | Boltonia L'Hér. | BOLTO | Asteraceae | |
| Domingan coccocarpia lichen | Coccocarpia domingensis Vainio | CODO3 | Coccocarpiaceae | |
| Domin's club | Cheirodendron dominii Krajina | CHDO3 | Araliaceae | |
| doncella | Byrsonima spicata (Cav.) Kunth | BYSP | Malpighiaceae | |
| Donnell's anthoceros | Anthoceros donnelli Aust. | ANDO5 | Anthocerotaceae | |
| Donnell's archidium moss | Archidium donnellii Aust. | ARDO6 | Archidiaceae | |
| Dore's needlegrass | Achnatherum nelsonii (Scribn.) Barkworth ssp. dorei (Barkworth & Maze) Barkworth | ACNED | Poaceae | |
| dot lichen | Arthonia Ach. | ARTHO | Arthoniaceae | |
| dot lichen | Arthonia albofuscescens Tuck. | ARAL16 | Arthoniaceae | |
| dot lichen | Arthonia albovirescens Nyl. | ARAL17 | Arthoniaceae | |
| dot lichen | Arthonia aleuromela Nyl. | ARAL18 | Arthoniaceae | |
| dot lichen | Arthonia arthonioides (Ach.) A. L. Sm. | ARAR22 | Arthoniaceae | |
| dot lichen | Arthonia astericus Mull. Arg. | ARAS2 | Arthoniaceae | |
| dot lichen | Arthonia atrata (Fee) Mull. Arg. | ARAT7 | Arthoniaceae | |
| dot lichen | Arthonia bisepta Degel. | ARBI9 | Arthoniaceae | |
| dot lichen | Arthonia byssacea (Weigel) Almq. | ARBY | Arthoniaceae | |
| dot lichen | Arthonia caesia (Flotow) Korber | ARCA35 | Arthoniaceae | |
| dot lichen | Arthonia carneorufa Willey | ARCA37 | Arthoniaceae | |
| dot lichen | Arthonia caudata Willey | ARCA38 | Arthoniaceae | |
| dot lichen | Arthonia chiodectella Nyl. | ARCH11 | Arthoniaceae | |
| dot lichen | Arthonia cinereopruinosa Schaerer | ARCI4 | Arthoniaceae | |
| dot lichen | Arthonia complanata Fee | ARCO28 | Arthoniaceae | |
| dot lichen | Arthonia conferta (Fee) Nyl. | ARCO29 | Arthoniaceae | |
| dot lichen | Arthonia cupressina Tuck. | ARCU6 | Arthoniaceae | |
| dot lichen | Arthonia cytisi A. Massal. | ARCY3 | Arthoniaceae | |
| dot lichen | Arthonia didyma Korber | ARDI17 | Arthoniaceae | |
| dot lichen | Arthonia diffusella Fink | ARDI19 | Arthoniaceae | |
| dot lichen | Arthonia dispersula Nyl. | ARDI21 | Arthoniaceae | |
| dot lichen | Arthonia epipastoides Nyl. | AREP | Arthoniaceae | |
| dot lichen | Arthonia erubescens Willey | ARER4 | Arthoniaceae | |
| dot lichen | Arthonia erupta Nyl. | ARER5 | Arthoniaceae | |
| dot lichen | Arthonia excedens Nyl. | AREX2 | Arthoniaceae | |
| dot lichen | Arthonia exilis (Florke) Anzi | AREX3 | Arthoniaceae | |
| dot lichen | Arthonia fuliginosa (Schaer) Flotow | ARFU5 | Arthoniaceae | |
| dot lichen | Arthonia glaucescens Nyl. | ARGL15 | Arthoniaceae | |
| dot lichen | Arthonia glaucomaria (Nyl.) Nyl. | ARGL16 | Arthoniaceae | |
| dot lichen | Arthonia glebosa Tuck. | ARGL17 | Arthoniaceae | |
| dot lichen | Arthonia granosa de Lesd. | ARGR15 | Arthoniaceae | |
| dot lichen | Arthonia gyalectoides Mull Arg. | ARGY2 | Arthoniaceae | |
| dot lichen | Arthonia hamamelidis Nyl. | ARHA6 | Arthoniaceae | |
| dot lichen | Arthonia hypobela (Nyl.) Zahlbr. | ARHY3 | Arthoniaceae | |
| dot lichen | Arthonia impallens Nyl. | ARIM2 | Arthoniaceae | |
| dot lichen | Arthonia incarnata Fr. ex Almq. | ARIN14 | Arthoniaceae | |
| dot lichen | Arthonia intexta Almq. | ARIN15 | Arthoniaceae | |
| dot lichen | Arthonia lapidicola (Taylor) Branth & Rostrup | ARLA25 | Arthoniaceae | |
| dot lichen | Arthonia lecanactidea Zahlbr. | ARLE6 | Arthoniaceae | |
| dot lichen | Arthonia lecideella Nyl. | ARLE7 | Arthoniaceae | |
| dot lichen | Arthonia leucastraea Tuck. | ARLE8 | Arthoniaceae | |
| dot lichen | Arthonia leucopellaea (Ach.) Almq. | ARLE10 | Arthoniaceae | |
| dot lichen | Arthonia luridoalba Nyl. | ARLU5 | Arthoniaceae | |
| dot lichen | Arthonia mediella Nyl. | ARME10 | Arthoniaceae | |
| dot lichen | Arthonia melaspora Tuck. | ARME11 | Arthoniaceae | |
| dot lichen | Arthonia microspermella Willey | ARMI10 | Arthoniaceae | |
| dot lichen | Arthonia ochrocincta Willey | AROC3 | Arthoniaceae | |
| dot lichen | Arthonia ochrodiscodes Nyl. | AROC4 | Arthoniaceae | |
| dot lichen | Arthonia ochrolutea Nyl. | AROC5 | Arthoniaceae | |
| dot lichen | Arthonia palmulacea (Mull. Arg.) R. Sant. | ARPA29 | Arthoniaceae | |
| dot lichen | Arthonia patellulata Nyl. | ARPA30 | Arthoniaceae | |
| dot lichen | Arthonia perminuta Willey | ARPE15 | Arthoniaceae | |
| dot lichen | Arthonia phaeobaea (Norman) Norman | ARPH2 | Arthoniaceae | |
| dot lichen | Arthonia pinastri Anzi | ARPI4 | Arthoniaceae | |
| dot lichen | Arthonia platygraphidea Nyl. | ARPL7 | Arthoniaceae | |
| dot lichen | Arthonia platyspilea Nyl. | ARPL8 | Arthoniaceae | |
| dot lichen | Arthonia polygramma Nyl. | ARPO11 | Arthoniaceae | |
| dot lichen | Arthonia polymorpha Ach. | ARPO12 | Arthoniaceae | |
| dot lichen | Arthonia pruinosella Nyl. | ARPR8 | Arthoniaceae | |
| dot lichen | Arthonia pruinosula Nyl. | ARPR9 | Arthoniaceae | |
| dot lichen | Arthonia punctiformis Ach. | ARPU19 | Arthoniaceae | |
| dot lichen | Arthonia pyrrhula Nyl. | ARPY5 | Arthoniaceae | |
| dot lichen | Arthonia pyrrhuliza Nyl. | ARPY6 | Arthoniaceae | |
| dot lichen | Arthonia quintaria Nyl. | ARQU2 | Arthoniaceae | |
| dot lichen | Arthonia radiata (Pers.) Ach. | ARRA4 | Arthoniaceae | |
| dot lichen | Arthonia rhoidis Zahlbr. | ARRH4 | Arthoniaceae | |
| dot lichen | Arthonia rubella (Fee) Nyl. | ARRU8 | Arthoniaceae | |
| dot lichen | Arthonia rupicola Fink | ARRU9 | Arthoniaceae | |
| dot lichen | Arthonia sexlocularis Zahlbr. | ARSE16 | Arthoniaceae | |
| dot lichen | Arthonia siderea Degel. | ARSI7 | Arthoniaceae | |
| dot lichen | Arthonia spadicea Leighton | ARSP10 | Arthoniaceae | |
| dot lichen | Arthonia stictella Stizenb. | ARST11 | Arthoniaceae | |
| dot lichen | Arthonia subastroidella Nyl. | ARSU13 | Arthoniaceae | |
| dot lichen | Arthonia subdiffusa Willey | ARSU14 | Arthoniaceae | |
| dot lichen | Arthonia subdispuncta Nyl. | ARSU15 | Arthoniaceae | |
| dot lichen | Arthonia subminutissima Nyl. | ARSU16 | Arthoniaceae | |
| dot lichen | Arthonia subminutula Nyl. | ARSU17 | Arthoniaceae | |
| dot lichen | Arthonia subrubella Nyl. | ARSU18 | Arthoniaceae | |
| dot lichen | Arthonia taedescens Nyl. | ARTA | Arthoniaceae | |
| dot lichen | Arthonia terrigena Nyl. | ARTE10 | Arthoniaceae | |
| dot lichen | Arthonia tetramera (Stizenb.) Hasse | ARTE11 | Arthoniaceae | |
| dot lichen | Arthonia torulosa Fee | ARTO6 | Arthoniaceae | |
| dot lichen | Arthonia varia (Ach.) Nyl. | ARVA3 | Arthoniaceae | |
| dot lichen | Arthonia vernans Willey | ARVE5 | Arthoniaceae | |
| dot lichen | Arthonia viridicans Willey | ARVI14 | Arthoniaceae | |
| dot lichen | Arthonia xylographica Nyl. | ARXY | Arthoniaceae | |
| dotted hawthorn | Crataegus punctata Jacq. | CRPU | Rosaceae | |
| dotted lichen | Bacidia arceutina (Ach.) Arnold | BAAR4 | Bacidiaceae | |
| dotted lichen | Bacidia artyta (Ach.) | BAAR6 | Bacidiaceae | |
| dotted lichen | Bacidia De Not. | BACID | Bacidiaceae | |
| dotted lichen | Bacidia granosa (Tuck.) Zahlbr. | BAGR | Bacidiaceae | |
| dotted lichen | Bacidia herbarum (Stizenb.) Arnold | BAHE3 | Bacidiaceae | |
| dotted lichen | Bacidia illudens (Nyl.) Lynge | BAIL | Bacidiaceae | |
| dotted lichen | Bacidia ioessa Herre | BAIO2 | Bacidiaceae | |
| dotted lichen | Bacidia laurocerasi (Delise ex Duby) Zahlbr. | BALA7 | Bacidiaceae | |
| dotted lichen | Bacidia medialis (Tuck. ex Nyl.) de Lesd. | BAME4 | Bacidiaceae | |
| dotted lichen | Bacidia nivalis Follmann | BANI2 | Bacidiaceae | |
| dotted lichen | Bacidia pallens (Kullhem) Zahlbr. | BAPA4 | Bacidiaceae | |
| dotted lichen | Bacidia polychroa (Th. Fr.) Korber | BAPO4 | Bacidiaceae | |
| dotted lichen | Bacidia rosella (Pers.) De Not. | BARO3 | Bacidiaceae | |
| dotted lichen | Bacidia rubella (Hoffm.) A. Massal. | BARU2 | Bacidiaceae | |
| dotted lichen | Bacidia rubidofusca (Willey) Zahlbr. | BARU3 | Bacidiaceae | |
| dotted lichen | Bacidia saxicola Looman | BASA6 | Bacidiaceae | |
| dotted lichen | Bacidia scopulicola (Nyl.) A. L. Sm. | BASC3 | Bacidiaceae | |
| dotted lichen | Bacidia subincompta (Nyl.) Arnold | BASU4 | Bacidiaceae | |
| dotted lichen | Bacidia suffusa (Fr.) A. Schneider | BASU5 | Bacidiaceae | |
| dotted lichen | Bacidia trachona (Ach.) Lettau | BATR3 | Bacidiaceae | |
| dotted onion | Allium punctum Henderson | ALPU | Liliaceae | |
| double edge maidenhair | Adiantum anceps Maxon & Morton | ADAN2 | Pteridaceae | |
| doubtful chickweed | Cerastium dubium (Bast.) Guépin | CEDU2 | Caryophyllaceae | |
| doubtful knight's-spur | Consolida ajacis (L.) Schur | COAJ | Ranunculaceae | |
| doubting mariposa lily | Calochortus ambiguus (M.E. Jones) Ownbey | CAAM4 | Liliaceae | |
| Douglas' dustymaiden | Chaenactis douglasii (Hook.) Hook. & Arn. | CHDO | Asteraceae | |
| Douglas' dustymaiden | Chaenactis douglasii (Hook.) Hook. & Arn. var. douglasii | CHDOD | Asteraceae | |
| Douglas' fiddleneck | Amsinckia douglasiana A. DC. | AMDO | Boraginaceae | |
| Douglas fir dwarf mistletoe | Arceuthobium douglasii Engelm. | ARDO | Viscaceae | |
| Douglas maple | Acer glabrum Torr. var. douglasii (Hook.) Dippel | ACGLD4 | Aceraceae | |
| Douglas' onion | Allium douglasii Hook. | ALDO | Liliaceae | |
| Douglas' sagewort | Artemisia douglasiana Bess. ex Hook. | ARDO3 | Asteraceae | |
| Douglas' sedge | Carex douglasii Boott | CADO2 | Cyperaceae | |
| Douglas' spiny milkvetch | Astragalus kentrophyta Gray var. douglasii Barneby | ASKED2 | Fabaceae | |
| Douglas' thistle | Cirsium douglasii DC. | CIDO2 | Asteraceae | |
| Douglas' thistle | Cirsium douglasii DC. var. breweri (Petrak) Keil & C. Turner | CIDOB2 | Asteraceae | |
| Douglas' thistle | Cirsium douglasii DC. var. douglasii | CIDOD | Asteraceae | |
| Douglas' tickseed | Coreopsis douglasii (DC.) Hall | CODO2 | Asteraceae | |
| Douglass' springparsley | Cymopterus douglassii R.L. Hartman & Constance | CYDO2 | Apiaceae | |
| dove weed | Croton setigerus Hook. | CRSE11 | Euphorbiaceae | |
| downy alpine oatgrass | Avenula pubescens (Huds.) Dumort. | AVPU2 | Poaceae | |
| downy birch | Betula pubescens Ehrh. | BEPU5 | Betulaceae | |
| downy birch | Betula pubescens Ehrh. var. pubescens | BEPUP4 | Betulaceae | |
| downy hawthorn | Crataegus mollis Scheele | CRMO2 | Rosaceae | |
| downy Indian paintbrush | Castilleja purpurea (Nutt.) G. Don | CAPU11 | Scrophulariaceae | |
| downy Indian paintbrush | Castilleja purpurea (Nutt.) G. Don var. purpurea | CAPUP5 | Scrophulariaceae | |
| downy pagoda-plant | Blephilia ciliata (L.) Benth. | BLCI | Lamiaceae | |
| downy paintedcup | Castilleja sessiliflora Pursh | CASE5 | Scrophulariaceae | |
| downy serviceberry | Amelanchier arborea (Michx. f.) Fern. var. austromontana (Ashe) Ahles | AMARA5 | Rosaceae | |
| downy yellow false foxglove | Aureolaria virginica (L.) Pennell | AUVI | Scrophulariaceae | |
| dozedaisy | Aphanostephus DC. | APHAN3 | Asteraceae | |
| Dragon milkvetch | Astragalus lutosus M.E. Jones | ASLU2 | Fabaceae | |
| dragon's mouth | Arethusa bulbosa L. | ARBU | Orchidaceae | |
| dragon's mouth | Arethusa L. | ARETH | Orchidaceae | |
| Dress' goldenaster | Chrysopsis linearifolia Semple ssp. dressii Semple | CHLID | Asteraceae | |
| drooping milkvetch | Astragalus reflexus Torr. & Gray | ASRE3 | Fabaceae | |
| drooping sedge | Carex prasina Wahlenb. | CAPR12 | Cyperaceae | |
| drooping she-oak | Allocasuarina verticillata (Lam.) L. A. S. Johnson | ALVE7 | Casuarinaceae | |
| drooping wattle | Acacia difformis R. T. Baker | ACDI8 | Fabaceae | |
| drooping woodland sedge | Carex arctata Boott ex Hook. | CAAR3 | Cyperaceae | |
| drooping woodreed | Cinna latifolia (Trev. ex Goepp.) Griseb. | CILA2 | Poaceae | |
| dropseed | Blepharoneuron Nash | BLEPH4 | Poaceae | |
| dropseed rockcress | Arabis holboellii Hornem. var. pendulocarpa (A. Nels.) Rollins | ARHOP2 | Brassicaceae | |
| Drummond's anemone | Anemone drummondii S. Wats. | ANDR | Ranunculaceae | |
| Drummond's anemone | Anemone drummondii S. Wats. ssp. drummondii | ANDRD | Ranunculaceae | |
| Drummond's bruchia moss | Bruchia drummondii Hampe ex Britt. | BRDR2 | Bruchiaceae | |
| Drummond's clematis | Clematis drummondii Torr. & Gray | CLDR | Ranunculaceae | |
| Drummond's maple | Acer rubrum L. var. drummondii (Hook. & Arn. ex Nutt.) Sarg. | ACRUD | Aceraceae | |
| Drummond's milkvetch | Astragalus drummondii Dougl. ex Hook. | ASDR3 | Fabaceae | |
| Drummond's onion | Allium drummondii Regel | ALDR | Liliaceae | |
| Drummond's rockcress | Arabis drummondii Gray | ARDR | Brassicaceae | |
| Drummond's sedge | Carex rupestris All. var. drummondiana (Dewey) Bailey | CARUD | Cyperaceae | |
| Drummond's sedge | Cyperus drummondii Torr. & Gray | CYDR4 | Cyperaceae | |
| Drummond's wattle | Acacia drummondii Lindl. | ACDR2 | Fabaceae | |
| dry calcareous bryum moss | Bryum caespiticium Hedw. | BRCA71 | Bryaceae | |
| dryspike sedge | Carex siccata Dewey | CASI12 | Cyperaceae | |
| Duane's milkvetch | Astragalus pinonis M.E. Jones var. atwoodii (Welsh & Thorne) Barneby & Isely | ASPIA | Fabaceae | |
| Duchesne milkvetch | Astragalus duchesnensis M.E. Jones | ASDU2 | Fabaceae | |
| Duchesne rockcress | Arabis pulchra M.E. Jones ex S. Wats. var. duchesnensis Rollins | ARPUD | Brassicaceae | |
| Dudley's clarkia | Clarkia dudleyana (Abrams) J.F. Macbr. | CLDU | Onagraceae | |
| Dudley's sedge | Carex dudleyi Mackenzie | CADU2 | Cyperaceae | |
| duke hawthorn | Crataegus stenosepala Sarg. | CRST | Rosaceae | |
| dullgreen spleenwort | Asplenium radicans L. | ASRA6 | Aspleniaceae | |
| Dunbar's hawthorn | Crataegus beata Sarg. | CRBE6 | Rosaceae | |
| dunhead sedge | Carex phaeocephala Piper | CAPH2 | Cyperaceae | |
| Dunn's mariposa lily | Calochortus dunnii Purdy | CADU | Liliaceae | |
| Durietz's orange lichen | Caloplaca durietzii Zahlbr. | CADU8 | Teloschistaceae | |
| dusky dogfennel | Chamaemelum fuscatum (Brot.) Vasc. | CHFU2 | Asteraceae | |
| dusky onion | Allium campanulatum S. Wats. | ALCA2 | Liliaceae | |
| duskyseed sedge | Carex pelocarpa F.J. Herm. | CAPE5 | Cyperaceae | |
| dust lichen | Chrysothrix candelaris (L.) J. R. Laundon | CHCA31 | Chrysotrichaceae | |
| dust lichen | Chrysothrix chlorina (Ach.) J. R. Laundon | CHCH15 | Chrysotrichaceae | |
| dust lichen | Chrysothrix Mont. | CHRYS12 | Chrysotrichaceae | |
| dustseed | Acisanthera quadrata Pers. | ACQU | Melastomataceae | |
| dusty miller | Centaurea cineraria L. | CECI2 | Asteraceae | |
| dutch crocus | Crocus vernus (L.) Hill | CRVE4 | Iridaceae | |
| dutchman's pipe | Aristolochia L. | ARIST2 | Aristolochiaceae | |
| dwarf alpine hawksbeard | Crepis nana Richards. | CRNA | Asteraceae | |
| dwarf alpine hawksbeard | Crepis nana Richards. ssp. clivicola Leggett | CRNAC | Asteraceae | |
| dwarf alpine hawksbeard | Crepis nana Richards. ssp. nana | CRNAN | Asteraceae | |
| dwarf alpine hawksbeard | Crepis nana Richards. ssp. ramosa Babcock | CRNAR | Asteraceae | |
| dwarf alpine Indian paintbrush | Castilleja nana Eastw. | CANA3 | Scrophulariaceae | |
| dwarf ayenia | Ayenia insulicola Cristobal | AYIN2 | Sterculiaceae | |
| dwarf birch | Betula nana L. | BENA | Betulaceae | |
| dwarf brodiaea | Brodiaea terrestris Kellogg | BRTE4 | Liliaceae | |
| dwarf brodiaea | Brodiaea terrestris Kellogg ssp. terrestris | BRTET | Liliaceae | |
| dwarf burr ragweed | Ambrosia pumila (Nutt.) Gray | AMPU4 | Asteraceae | |
| dwarf ceanothus | Ceanothus pumilus Greene | CEPU | Rhamnaceae | |
| dwarf century plant | Agave desmettiana Jacobi | AGDE4 | Agavaceae | |
| dwarf coastweed | Amblyopappus pusillus Hook. & Arn. | AMPU3 | Asteraceae | |
| dwarf desert honeysuckle | Anisacanthus puberulus (Torr.) Henrickson & Lott | ANPU6 | Acanthaceae | |
| dwarf desertpeony | Acourtia nana (Gray) Reveal & King | ACNA2 | Asteraceae | |
| dwarf false indigo | Amorpha nana Nutt. | AMNA | Fabaceae | |
| dwarf fireweed | Chamerion latifolium (L.) Holub | CHLA13 | Onagraceae | |
| dwarf goldenstar | Bloomeria humilis Hoover | BLHU | Liliaceae | |
| dwarf hackberry | Celtis tenuifolia Nutt. | CETE | Ulmaceae | |
| dwarf hawthorn | Crataegus uniflora Muenchh. | CRUN | Rosaceae | |
| dwarf horseweed | Conyza ramosissima Cronq. | CORA4 | Asteraceae | |
| dwarf Indian mallow | Abutilon parvulum Gray | ABPA3 | Malvaceae | |
| dwarf milkvetch | Astragalus microcystis Gray | ASMI4 | Fabaceae | |
| dwarf milkweed | Asclepias involucrata Engelm. ex Torr. | ASIN14 | Asclepiadaceae | |
| dwarf mistletoe | Arceuthobium Bieb. | ARCEU | Viscaceae | |
| dwarf morning-glory | Convolvulus tricolor L. | COTR17 | Convolvulaceae | |
| dwarf pawpaw | Asimina pygmea (Bartr.) Dunal | ASPY2 | Annonaceae | |
| dwarf peashrub | Caragana aurantiaca Koehne | CAAU10 | Fabaceae | |
| dwarf rockcress | Arabis parishii S. Wats. | ARPA | Brassicaceae | |
| dwarf sand verbena | Abronia nana S. Wats. | ABNA | Nyctaginaceae | |
| dwarf sand verbena | Abronia nana S. Wats. var. nana | ABNAN | Nyctaginaceae | |
| dwarf sandmat | Chamaesyce jejuna (M.C. Johnston & Warnock) Shinners | CHJE | Euphorbiaceae | |
| dwarf sedge | Carex pumila Thunb. | CAPU32 | Cyperaceae | |
| dwarf serviceberry | Amelanchier pumila (Torr. & Gray) Nutt. ex M. Roemer | AMPU5 | Rosaceae | |
| dwarf she-oak | Allocasuarina pusilla (Macklin) L. A. S. Johnson | ALPU10 | Casuarinaceae | |
| dwarf snapdragon | Chaenorhinum (DC.) Reichenb. | CHAEN7 | Scrophulariaceae | |
| dwarf snapdragon | Chaenorhinum minus (L.) Lange | CHMI | Scrophulariaceae | |
| dwarf spleenwort | Asplenium pumilum Sw. | ASPU10 | Aspleniaceae | |
| dwarf spotflower | Acmella pusilla (Hook. & Arn.) R.K. Jansen | ACPU | Asteraceae | |
| dwarf stickpea | Calliandra humilis Benth. | CAHU | Fabaceae | |
| dwarf stickpea | Calliandra humilis Benth. var. humilis | CAHUH | Fabaceae | |
| dwarf stickpea | Calliandra humilis Benth. var. reticulata (Gray) L. Benson | CAHUR | Fabaceae | |
| dwarf suncup | Camissonia pygmaea (Dougl. ex Lehm.) Raven | CAPY5 | Onagraceae | |
| dwarf thistle | Cirsium drummondii Torr. & Gray | CIDR2 | Asteraceae | |
| dwarf western rosinweed | Calycadenia villosa DC. | CAVI | Asteraceae | |
| dwarf white birch | Betula minor (Tuckerman) Fern. | BEMI | Betulaceae | |
| dwarf white milkvetch | Astragalus didymocarpus Hook. & Arn. | ASDI3 | Fabaceae | |
| dwarf white milkvetch | Astragalus didymocarpus Hook. & Arn. var. didymocarpus | ASDID2 | Fabaceae | |
| dwarf white milkvetch | Astragalus didymocarpus Hook. & Arn. var. dispermus (Gray) Jepson | ASDID | Fabaceae | |
| dwarf white milkvetch | Astragalus didymocarpus Hook. & Arn. var. milesianus (Rydb.) Jepson | ASDIM | Fabaceae | |
| dyed hawthorn | Crataegus tinctoria Ashe | CRTI2 | Rosaceae | |
| eared flatsedge | Cyperus auriculatus Nees & Meyen ex Kunth | CYAU2 | Cyperaceae | |
| eared redstem | Ammannia auriculata Willd. | AMAU2 | Lythraceae | |
| eared rockcress | Arabis hastatula Greene | ARHA2 | Brassicaceae | |
| eared spleenwort | Asplenium erosum L. | ASER9 | Aspleniaceae | |
| earleaf acacia | Acacia auriculiformis A. Cunningham ex Benth. | ACAU | Fabaceae | |
| earleaf brickellbush | Brickellia amplexicaulis B.L. Robins. | BRAM3 | Asteraceae | |
| earleaf brickellbush | Brickellia amplexicaulis B.L. Robins. var. amplexicaulis | BRAMA | Asteraceae | |
| earleaf brickellbush | Brickellia amplexicaulis B.L. Robins. var. lanceolata (Gray) B.L. Robins. | BRAML | Asteraceae | |
| earleaf false foxglove | Agalinis auriculata (Michx.) Blake | AGAU3 | Scrophulariaceae | |
| early crocus | Crocus imperati Ten. | CRIM4 | Iridaceae | |
| early jessamine | Cestrum fasciculatum (Schlecht.) Miers | CEFA3 | Solanaceae | |
| early onion | Allium praecox Brandeg. | ALPR2 | Liliaceae | |
| early sedge | Carex praeceptorum Mackenzie | CAPR22 | Cyperaceae | |
| early wattle | Acacia genistifolia Link | ACGE8 | Fabaceae | |
| early yellowrocket | Barbarea verna (P. Mill.) Aschers. | BAVE | Brassicaceae | |
| earlyleaf brome | Bromus latiglumis (Shear) A.S. Hitchc. | BRLA4 | Poaceae | |
| earth lichen | Catapyrenium acarosporoides (Zahlbr.) J. W. Thomson | CAAC11 | Verrucariaceae | |
| earth lichen | Catapyrenium caeruleopulvinum J. W. Thomson | CACA69 | Verrucariaceae | |
| earth lichen | Catapyrenium cinereum (Pers.) Korber | CACI13 | Verrucariaceae | |
| earth lichen | Catapyrenium daedaleum (Krempelh.) Stein in Cohn | CADA6 | Verrucariaceae | |
| earth lichen | Catapyrenium Flotow | CATAP2 | Verrucariaceae | |
| earth lichen | Catapyrenium heppioides (Zahlbr.) J. W. Thomson | CAHE23 | Verrucariaceae | |
| earth lichen | Catapyrenium lachneum (Ach.) R. Sant. | CALA60 | Verrucariaceae | |
| earth lichen | Catapyrenium plumbeum (de Lesd.) J. W. Thomson | CAPL15 | Verrucariaceae | |
| earth lichen | Catapyrenium squamellum (Nyl.) J. W. Thomson | CASQ4 | Verrucariaceae | |
| east indian arrowroot | Curcuma angustifolia Roxb. | CUAN2 | Zingiberaceae | |
| East Indian island pea | Christia verspertilionis (L. f.) Bakh. f. | CHVE6 | Fabaceae | |
| east indian lemongrass | Cymbopogon flexuosus (Nees ex Steudel) J. F. Watson | CYFL2 | Poaceae | |
| easterbonnets | Antheropeas Rydb. | ANTHE4 | Asteraceae | |
| eastern baccharis | Baccharis halimifolia L. | BAHA | Asteraceae | |
| eastern bluestar | Amsonia tabernaemontana Walt. | AMTA2 | Apocynaceae | |
| eastern bluestar | Amsonia tabernaemontana Walt. var. gattingeri Woods. | AMTAG | Apocynaceae | |
| eastern bluestar | Amsonia tabernaemontana Walt. var. salicifolia (Pursh) Woods. | AMTAS | Apocynaceae | |
| eastern bluestar | Amsonia tabernaemontana Walt. var. tabernaemontana | AMTAT | Apocynaceae | |
| eastern dwarf mistletoe | Arceuthobium pusillum Peck | ARPU3 | Viscaceae | |
| eastern fox sedge | Carex triangularis Boeckl. | CATR6 | Cyperaceae | |
| eastern narrowleaf sedge | Carex amphibola Steud. | CAAM8 | Cyperaceae | |
| eastern redbud | Cercis canadensis L. | CECA4 | Fabaceae | |
| eastern redbud | Cercis canadensis L. var. canadensis | CECAC | Fabaceae | |
| eastern rough sedge | Carex scabrata Schwein. | CASC13 | Cyperaceae | |
| eastern star sedge | Carex radiata (Wahlenb.) Small | CARA8 | Cyperaceae | |
| eastern straw sedge | Carex straminea Willd. ex Schkuhr | CAST6 | Cyperaceae | |
| eastern sweetshrub | Calycanthus floridus L. | CAFL22 | Calycanthaceae | |
| eastern sweetshrub | Calycanthus floridus L. var. floridus | CAFLF | Calycanthaceae | |
| eastern sweetshrub | Calycanthus floridus L. var. glaucus (Willd.) Torr. & Gray | CAFLG | Calycanthaceae | |
| eastern woodland sedge | Carex blanda Dewey | CABL | Cyperaceae | |
| Eastwood's bellflower | Campanula angustiflora Eastw. | CAAN3 | Campanulaceae | |
| Eastwood's fiddleneck | Amsinckia eastwoodiae J.F. Macbr. | AMEA2 | Boraginaceae | |
| Eastwood's manzanita | Arctostaphylos glandulosa Eastw. | ARGL3 | Ericaceae | |
| Eastwood's manzanita | Arctostaphylos glandulosa Eastw. ssp. glandulosa | ARGLG3 | Ericaceae | |
| Eastwood's manzanita | Arctostaphylos glandulosa Eastw. ssp. glaucomollis P.V. Wells | ARGLG4 | Ericaceae | |
| Eastwood's manzanita | Arctostaphylos glandulosa Eastw. ssp. mollis (J.E. Adams) P.V. Wells | ARGLM2 | Ericaceae | |
| Eastwood's milkvetch | Astragalus eastwoodiae M.E. Jones | ASEA2 | Fabaceae | |
| Eastwood's sandwort | Arenaria eastwoodiae Rydb. | AREA | Caryophyllaceae | |
| Eastwood's sandwort | Arenaria eastwoodiae Rydb. var. adenophora Kearney & Peebles | AREAA | Caryophyllaceae | |
| Eastwood's sandwort | Arenaria eastwoodiae Rydb. var. eastwoodiae | AREAE | Caryophyllaceae | |
| Eaton's beggarticks | Bidens eatonii Fern. | BIEA | Asteraceae | |
| Eaton's lipfern | Cheilanthes eatonii Baker | CHEA | Pteridaceae | |
| Eaton's thistle | Cirsium eatonii (Gray) B.L. Robins. | CIEA | Asteraceae | |
| ebony coccuswood | Brya ebenus (L.) DC. | BREB | Fabaceae | |
| ebony sedge | Carex ebenea Rydb. | CAEB | Cyperaceae | |
| ebony spleenwort | Asplenium platyneuron (L.) B.S.P. | ASPL | Aspleniaceae | |
| ebony spleenwort | Asplenium platyneuron (L.) B.S.P. var. bacculum-rubrum (Featherman) Fern. | ASPLB | Aspleniaceae | |
| ebony spleenwort | Asplenium platyneuron (L.) B.S.P. var. platyneuron | ASPLP | Aspleniaceae | |
| Eckfeldt's dot lichen | Arthonia eckfeldtii Mull. Arg. | AREC | Arthoniaceae | |
| edible thistle | Cirsium edule Nutt. | CIED | Asteraceae | |
| Edwards' bluewood | Condalia hookeri M.C. Johnston var. edwardsiana (Cory) M.C. Johnston | COHOE | Rhamnaceae | |
| Edwards Plateau beardgrass | Bothriochloa edwardsiana (Gould) Parodi | BOED | Poaceae | |
| Edwards Plateau five eyes | Chamaesaracha edwardsiana Averett | CHED | Solanaceae | |
| Edwards Plateau milkvetch | Astragalus pleianthus (Shinners) Isely | ASPL8 | Fabaceae | |
| Edwards Plateau sedge | Carex edwardsiana Bridges & Orzell | CAED5 | Cyperaceae | |
| Edwards Plateau thimbleweed | Anemone edwardsiana Tharp | ANED2 | Ranunculaceae | |
| Edwards Plateau thimbleweed | Anemone edwardsiana Tharp var. edwardsiana | ANEDE | Ranunculaceae | |
| Edwards Plateau thimbleweed | Anemone edwardsiana Tharp var. petraea Correll | ANEDP | Ranunculaceae | |
| effluent water-starwort | Callitriche trochlearis Fassett | CATR2 | Callitrichaceae | |
| egg milkvetch | Astragalus oophorus S. Wats. | ASOO3 | Fabaceae | |
| egg milkvetch | Astragalus oophorus S. Wats. var. caulescens (M.E. Jones) M.E. Jones | ASOOC | Fabaceae | |
| egg milkvetch | Astragalus oophorus S. Wats. var. clokeyanus Barneby | ASOOC2 | Fabaceae | |
| egg milkvetch | Astragalus oophorus S. Wats. var. lonchocalyx Barneby | ASOOL | Fabaceae | |
| egg milkvetch | Astragalus oophorus S. Wats. var. oophorus | ASOOO2 | Fabaceae | |
| eggbract sedge | Carex ovalis Goodenough | CAOV8 | Cyperaceae | |
| Eggers' century plant | Agave eggersiana Trel. | AGEG | Agavaceae | |
| eggleaf coraldrops | Besseya oblongifolia Pennell | BEOB2 | Scrophulariaceae | |
| eggleaf lacefern | Ctenitis nemorosa (Humb. & Bonpl. ex Willd.) Ching | CTNE | Dryopteridaceae | |
| Eggleston's milkvetch | Astragalus egglestonii (Rydb.) Kearney & Peebles | ASEG | Fabaceae | |
| Eggleston's sedge | Carex egglestonii Mackenzie | CAEG | Cyperaceae | |
| eggyolk lichen | Candelariella athallina (Wedd.) Du Rietz | CAAT60 | Candelariaceae | |
| eggyolk lichen | Candelariella aurella (Hoffm.) Zahlbr. | CAAU60 | Candelariaceae | |
| eggyolk lichen | Candelariella citrina de Lesd. | CACI12 | Candelariaceae | |
| eggyolk lichen | Candelariella efflorescens R. C. Harris & W. R. Buck | CAEF | Candelariaceae | |
| eggyolk lichen | Candelariella lutella (Vainio) Rasanen | CALU22 | Candelariaceae | |
| eggyolk lichen | Candelariella Mull. Arg. | CANDE3 | Candelariaceae | |
| eggyolk lichen | Candelariella placodizans (Nyl.) H. Magn. | CAPL13 | Candelariaceae | |
| eggyolk lichen | Candelariella plumbea Poelt & Vezda | CAPL14 | Candelariaceae | |
| eggyolk lichen | Candelariella rosulans (Mull. Arg.) Zahlbr. | CARO30 | Candelariaceae | |
| eggyolk lichen | Candelariella stenospora de Lesd. | CAST44 | Candelariaceae | |
| eggyolk lichen | Candelariella subdeflexa (Nyl.) Lettau | CASU40 | Candelariaceae | |
| eggyolk lichen | Candelariella terrigena Rasanen | CATE61 | Candelariaceae | |
| eggyolk lichen | Candelariella vitellina (Hoffm.) Mull. Arg. | CAVI60 | Candelariaceae | |
| eggyolk lichen | Candelariella xanthostigma (Ach.) Lettau | CAXA60 | Candelariaceae | |
| Egyptian carissa | Carissa edulis (Forsk.) Vahl [excluded] | CAED8 | Apocynaceae | |
| Egyptian spleenwort | Asplenium aethiopicum (N.L. Burm.) Becherer | ASAE2 | Aspleniaceae | |
| Ehrenberg's barbula moss | Barbula ehrenbergii (Lor.) Fleisch. | BAEH | Pottiaceae | |
| eke silversword | Argyroxiphium caliginis Forbes | ARCA22 | Asteraceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. | CHCE | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. amplectens (Sherff) O.& I. Deg. | CHCEA | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. celastroides | CHCEC | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. hanapepensis (Sherff) O.& I. Deg. | CHCEH | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. kaenana (Sherff) O.& I. Deg. | CHCEK | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. laehiensis (O.& I. Deg. & Sherff) Koutnik | CHCEL | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. lorifolia (Gray) O.& I. Deg. | CHCEL2 | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. stokesii (Forbes) O.& I. Deg. | CHCES | Euphorbiaceae | |
| 'ekoko | Chamaesyce celastroides (Boiss.) Croizat & Deg. var. tomentella (Boiss.) Koutnik | CHCET | Euphorbiaceae | |
| El Dorado mule-ears | Agnorhiza reticulata (Greene) W.A. Weber | AGRE8 | Asteraceae | |
| eleele cyanea | Cyanea eleeleensis (St. John) Lammers | CYEL8 | Campanulaceae | |
| elegant amygdalaria lichen | Amygdalaria elegantior (H. Magn.) Hertel & Brodo | AMEL60 | Porpidiaceae | |
| elegant clarkia | Clarkia unguiculata Lindl. | CLUN | Onagraceae | |
| elegant disc lichen | Buellia elegans Poelt | BUEL2 | Physciaceae | |
| elegant dutchman's pipe | Aristolochia elegans Mast. | AREL10 | Aristolochiaceae | |
| elegant hawksbeard | Crepis elegans Hook. | CREL | Asteraceae | |
| elegant hawthorn | Crataegus poliophylla Sarg. | CRPO | Rosaceae | |
| elegant Indian paintbrush | Castilleja elegans Malte | CAEL6 | Scrophulariaceae | |
| elegant kihifern | Adenophorus abietinus (D.C. Eat.) K.A. Wilson | ADAB | Grammitidaceae | |
| elegant mariposa lily | Calochortus elegans Pursh | CAEL | Liliaceae | |
| elegant mariposa lily | Calochortus elegans Pursh var. elegans | CAELE | Liliaceae | |
| elegant mariposa lily | Calochortus elegans Pursh var. nanus Wood | CAELN | Liliaceae | |
| elegant mariposa lily | Calochortus elegans Pursh var. oreophilus Ownbey | CAELO | Liliaceae | |
| elegant milkvetch | Astragalus eucosmus B.L. Robins. | ASEU2 | Fabaceae | |
| elegant rockcress | Arabis sparsiflora Nutt. var. arcuata (Nutt.) Rollins | ARSPA | Brassicaceae | |
| elegant rockcress | Arabis sparsiflora Nutt. var. atrorubens (Suksdorf ex Greene) Rollins | ARSPA2 | Brassicaceae | |
| elemi frankincense | Boswellia frereana Birdw. | BOFR3 | Burseraceae | |
| elephant creeper | Argyreia nervosa (Burm. f.) Bojer | ARNE4 | Convolvulaceae | |
| elephant tree | Boswellia papyrifera (Del. ex Caill.) Hochst. | BOPA11 | Burseraceae | |
| elephant tree | Bursera microphylla Gray | BUMI | Burseraceae | |
| elephant-ear | Bergenia Moench | BERGE2 | Saxifragaceae | |
| Elizabeth's milkvetch | Astragalus desperatus M.E. Jones var. neeseae Barneby | ASDEN | Fabaceae | |
| elk sedge | Carex garberi Fern. | CAGA3 | Cyperaceae | |
| elk thistle | Cirsium foliosum (Hook.) DC. | CIFO | Asteraceae | |
| Elko cryptantha | Cryptantha interrupta (Greene) Payson | CRIN9 | Boraginaceae | |
| Elko rockcress | Arabis falcifructa Rollins | ARFA3 | Brassicaceae | |
| Elliott's bentgrass | Agrostis elliottiana J.A. Schultes | AGEL4 | Poaceae | |
| Elliott's bluestem | Andropogon gyrans Ashe | ANGY2 | Poaceae | |
| Elliott's bluestem | Andropogon gyrans Ashe var. gyrans | ANGYG | Poaceae | |
| Elliott's bluestem | Andropogon gyrans Ashe var. stenophyllus (Hack.) C. Campbell | ANGYS | Poaceae | |
| Elliott's croton | Croton elliottii Chapman | CREL3 | Euphorbiaceae | |
| Elliott's sedge | Carex elliottii Schwein. & Torr. | CAEL9 | Cyperaceae | |
| ellipticleaf cyanea | Cyanea elliptica (Rock) Lammers | CYEL5 | Campanulaceae | |
| ellipticleaf papala | Charpentiera elliptica (Hbd.) Heller | CHEL | Amaranthaceae | |
| Ellis' stinking milkvetch | Astragalus praelongus Sheldon var. ellisiae (Rydb.) Barneby | ASPRE | Fabaceae | |
| Elmendorf's onion | Allium elmendorfii M.E. Jones ex Ownbey | ALEL | Liliaceae | |
| elongated bluehearts | Buchnera longifolia Kunth | BULO | Scrophulariaceae | |
| elongated mustard | Brassica elongata Ehrh. | BREL2 | Brassicaceae | |
| embrert | Clerodendrum inerme (L.) Gaertn. | CLIN2 | Verbenaceae | |
| Emmons' sedge | Carex albicans Willd. ex Spreng. var. emmonsii (Dewey ex Torr.) J. Rettig | CAALE | Cyperaceae | |
| Emory's baccharis | Baccharis emoryi Gray | BAEM | Asteraceae | |
| Emory's milkvetch | Astragalus emoryanus (Rydb.) Cory | ASEM2 | Fabaceae | |
| Emory's milkvetch | Astragalus emoryanus (Rydb.) Cory var. emoryanus | ASEME | Fabaceae | |
| Emory's milkvetch | Astragalus emoryanus (Rydb.) Cory var. terlinguensis (Cory) Barneby | ASEMT | Fabaceae | |
| Emory's milkweed | Asclepias emoryi (Greene) Vail | ASEM | Asclepiadaceae | |
| Emory's sedge | Carex emoryi Dewey | CAEM2 | Cyperaceae | |
| Enander's sedge | Carex lenticularis Michx. var. dolia (M.E. Jones) L.A. Standley | CALED | Cyperaceae | |
| enchanter's nightshade | Circaea L. | CIRCA | Onagraceae | |
| Encinitis false willow | Baccharis vanessae Beauchamp | BAVA3 | Asteraceae | |
| Engelmann's hawthorn | Crataegus engelmannii Sarg. | CREN | Rosaceae | |
| Engelmann's milkweed | Asclepias engelmanniana Woods. | ASEN | Asclepiadaceae | |
| Engelmann's sedge | Carex engelmannii Bailey | CAEN3 | Cyperaceae | |
| Engelmann's thistle | Cirsium engelmannii Rydb. | CIEN2 | Asteraceae | |
| Englemann's milkvetch | Astragalus distortus Torr. & Gray var. engelmannii (Sheldon) M.E. Jones | ASDIE | Fabaceae | |
| entireleaf Indian paintbrush | Castilleja indivisa Engelm. | CAIN13 | Scrophulariaceae | |
| entireleaf spiritweed | Aegiphila integrifolia (Jacq.) Jacq. | AEIN5 | Verbenaceae | |
| entireleaf western daisy | Astranthium integrifolium (Michx.) Nutt. | ASIN9 | Asteraceae | |
| entireleaf western daisy | Astranthium integrifolium (Michx.) Nutt. ssp. ciliatum (Raf.) DeJong | ASINC | Asteraceae | |
| entireleaf western daisy | Astranthium integrifolium (Michx.) Nutt. ssp. integrifolium | ASINI2 | Asteraceae | |
| entireleaf yellow false foxglove | Aureolaria laevigata (Raf.) Raf. | AULA | Scrophulariaceae | |
| epiphytic flatsedge | Cyperus lanceolatus Poir. | CYLA5 | Cyperaceae | |
| epiphytic orange lichen | Caloplaca epiphyta Lynge | CAEP4 | Teloschistaceae | |
| erect brachymenium moss | Brachymenium erectum (Hook.) Marg. | BRER7 | Bryaceae | |
| erect brome | Bromus erectus Huds. | BRER3 | Poaceae | |
| erect centella | Centella erecta (L. f.) Fern. | CEER2 | Apiaceae | |
| erect spiderling | Boerhavia erecta L. | BOER | Nyctaginaceae | |
| erectstem saltbush | Atriplex erecticaulis Stutz, Chu & Sanderson | ATER | Chenopodiaceae | |
| Erwin's red turtlehead | Chelone obliqua L. var. erwiniae Pennell & Wherry | CHOBE | Scrophulariaceae | |
| escabon | Chamaecytisus prolifera (L. f.) Link | CHPR14 | Fabaceae | |
| Escalante milkvetch | Astragalus newberryi Gray var. escalantinus Barneby | ASNEE | Fabaceae | |
| escarpment milkvetch | Astragalus striatiflorus M.E. Jones | ASST6 | Fabaceae | |
| Eschscholtz's hairy rockcress | Arabis eschscholtziana Andrz. | ARES5 | Brassicaceae | |
| escoba babosa | Bastardia bivalvis (Cav.) Kunth | BABI5 | Malvaceae | |
| escobilla butterflybush | Buddleja scordioides Kunth | BUSC | Buddlejaceae | |
| escorzonera | Craniolaria annua L. | CRAN8 | Pedaliaceae | |
| Essex hawthorn | Crataegus spissa Sarg. | CRSP6 | Rosaceae | |
| estuary beggarticks | Bidens hyperborea Greene | BIHY | Asteraceae | |
| estuary beggarticks | Bidens hyperborea Greene var. hyperborea | BIHYH | Asteraceae | |
| estuary sedge | Carex recta Boott | CARE14 | Cyperaceae | |
| Ethiopian dogstooth grass | Cynodon aethiopicus W.D. Clayton & Harlan | CYAE2 | Poaceae | |
| Ethiopian rattlebox | Crotalaria brevidens Benth. | CRBR8 | Fabaceae | |
| Ethiopian rattlebox | Crotalaria brevidens Benth. var. brevidens | CRBRB | Fabaceae | |
| Ethiopian rattlebox | Crotalaria brevidens Benth. var. intermedia (Kotschy) Polhill | CRBRI | Fabaceae | |
| Eton rosemary | Conradina etonia Kral & McCartney | COET | Lamiaceae | |
| Eureka milkvetch | Astragalus eurekensis M.E. Jones | ASEU4 | Fabaceae | |
| Eureka Springs hawthorn | Crataegus carrollensis Sarg. | CRCA22 | Rosaceae | |
| European alder | Alnus glutinosa (L.) Gaertn. | ALGL2 | Betulaceae | |
| European beachgrass | Ammophila arenaria (L.) Link | AMAR4 | Poaceae | |
| European bellflower | Campanula bononiensis L. | CABO8 | Campanulaceae | |
| European bishop | Bifora testiculata (L.) Spreng. | BITE3 | Apiaceae | |
| European centaury | Centaurium erythraea Rafn | CEER5 | Gentianaceae | |
| European chestnut | Castanea sativa P. Mill. | CASA27 | Fagaceae | |
| European chickweed | Cerastium pumilum W. Curtis | CEPU4 | Caryophyllaceae | |
| European columbine | Aquilegia vulgaris L. | AQVU | Ranunculaceae | |
| European fan palm | Chamaerops humilis L. | CHHU7 | Arecaceae | |
| European hackberry | Celtis australis L. | CEAU8 | Ulmaceae | |
| European hornbeam | Carpinus betulus L. | CABE8 | Betulaceae | |
| European lily of the valley | Convallaria majalis L. | COMA7 | Liliaceae | |
| European marshwort | Apium nodiflorum (L.) Lag. | APNO | Apiaceae | |
| European milkvetch | Astragalus hamosus L. | ASHA13 | Fabaceae | |
| European searocket | Cakile maritima Scop. | CAMA | Brassicaceae | |
| European smoketree | Cotinus coggygria Scop. | COCO10 | Anacardiaceae | |
| European swallow-wort | Cynanchum rossicum (Kleopov) Borhidi | CYRO8 | Asclepiadaceae | |
| European thimbleweed | Anemone nemorosa L. | ANNE4 | Ranunculaceae | |
| European water plantain | Alisma plantago-aquatica L. | ALPL | Alismataceae | |
| European white birch | Betula pendula Roth | BEPE3 | Betulaceae | |
| European woodland sedge | Carex sylvatica Huds. | CASY3 | Cyperaceae | |
| Evans' reindeer lichen | Cladina evansii (Abbayes) Hale & Culb. | CLEV | Cladoniaceae | |
| evening rainlily | Cooperia drummondii Herbert | CODR2 | Liliaceae | |
| Everglade Key sandmat | Chamaesyce conferta Small | CHCO10 | Euphorbiaceae | |
| Everglades palm | Acoelorraphe wrightii (Griseb. & H. Wendl.) H. Wendl. ex Becc. | ACWR4 | Arecaceae | |
| evergreen clematis | Clematis vitalba L. | CLVI6 | Ranunculaceae | |
| evergreen everlasting | Antennaria suffrutescens Greene | ANSU3 | Asteraceae | |
| Evermann's pincushion | Chaenactis evermannii Greene | CHEV | Asteraceae | |
| Evert's springparsley | Cymopterus evertii R.L. Hartman & Kirkpatrick | CYEV | Apiaceae | |
| exserted Indian paintbrush | Castilleja exserta (Heller) Chuang & Heckard | CAEX14 | Scrophulariaceae | |
| exserted Indian paintbrush | Castilleja exserta (Heller) Chuang & Heckard ssp. exserta | CAEXE | Scrophulariaceae | |
| exserted Indian paintbrush | Castilleja exserta (Heller) Chuang & Heckard ssp. venusta (Heller) Chuang & Heckard | CAEXV | Scrophulariaceae | |
| eyebane | Chamaesyce nutans (Lag.) Small | CHNU9 | Euphorbiaceae | |
| eyebright ayenia | Ayenia euphrasiifolia Griseb. | AYEU | Sterculiaceae |
Source: U. S. Department of Agriculture
Back to NurseryTree.com Home Page
OTHER RESOURCES
Lists of Nurseries Around the Country
Washington State Business, Government, etc. Listings
User Agreement Add Your Business About Us Site Map
(c) 2007 NurseryTrees.com, LLC