| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| DROCH | Dryas octopetala L. ssp. hookeriana (Juz.) Hultén | Hooker's mountain-avens | Rosaceae
|
| DROCA3 | Dryas octopetala L. ssp. octopetala var. angustifolia C.L. Hitchc. | eightpetal mountain-avens | Rosaceae
|
| DROCK2 | Dryas octopetala L. ssp. octopetala var. kamtschatica (Juz.) Hultén | Kamtschatca mountain-avens | Rosaceae
|
| DROCO2 | Dryas octopetala L. ssp. octopetala var. octopetala | eightpetal mountain-avens | Rosaceae
|
| DROCO | Dryas octopetala L. ssp. octopetala | eightpetal mountain-avens | Rosaceae
|
| DROCP8 | Dryas octopetala L. ssp. punctata (Juz.) Hultén | eightpetal mountain-avens | Rosaceae
|
| DROCG2 | Dryas octopetala L. var. glabrata Hultén | Dryas octopetala ssp. punctata | Rosaceae
|
| DROCH3 | Dryas octopetala L. var. hookeriana (Juz.) Breitung | Dryas octopetala ssp. hookeriana | Rosaceae
|
| DROCI | Dryas octopetala L. var. integrifolia (Vahl) Hook. f. | Dryas integrifolia ssp. integrifolia | Rosaceae
|
| DROCL | Dryas octopetala L. var. luteola Hultén | Dryas octopetala ssp. octopetala var. octopetala | Rosaceae
|
| DROCV2 | Dryas octopetala L. var. viscida Hultén | Dryas octopetala ssp. punctata | Rosaceae
|
| DROC | Dryas octopetala L. | eightpetal mountain-avens | Rosaceae
|
| DRPU2 | Dryas punctata Juz. | Dryas octopetala ssp. punctata | Rosaceae
|
| DRSY2 | Dryas sylvatica (Hultén) Porsild | Dryas integrifolia ssp. sylvatica | Rosaceae
|
| DRYAS | Dryas L. | mountain-avens | Rosaceae
|
| DRAR7 | Drymaria arenarioides Humb. & Bonpl. ex J.A. Schultes | sandwort drymary | Caryophyllaceae
|
| DRCOC2 | Drymaria cordata (L.) Willd. ex J.A. Schultes ssp. cordata | whitesnow | Caryophyllaceae
|
| DRCOD | Drymaria cordata (L.) Willd. ex J.A. Schultes ssp. diandra (Blume) J. Duke | whitesnow | Caryophyllaceae
|
| DRCOP | Drymaria cordata (L.) Willd. ex J.A. Schultes var. pacifica Mizush. | Drymaria cordata ssp. cordata | Caryophyllaceae
|
| DRCO2 | Drymaria cordata (L.) Willd. ex J.A. Schultes | whitesnow | Caryophyllaceae
|
| DRDE6 | Drymaria depressa Greene | Drymaria effusa var. depressa | Caryophyllaceae
|
| DRDI5 | Drymaria diandra Blume | Drymaria cordata ssp. diandra | Caryophyllaceae
|
| DREFD | Drymaria effusa Gray var. depressa (Greene) J. Duke | pinewoods drymary | Caryophyllaceae
|
| DREFE | Drymaria effusa Gray var. effusa | pinewoods drymary | Caryophyllaceae
|
| DREF | Drymaria effusa Gray | pinewoods drymary | Caryophyllaceae
|
| DRFE3 | Drymaria fendleri S. Wats. | Drymaria glandulosa | Caryophyllaceae
|
| DRGL5 | Drymaria glandulosa K. Presl | Fendler's drymary | Caryophyllaceae
|
| DRLA4 | Drymaria laxiflora Benth. | Trans Pecos drymary | Caryophyllaceae
|
| DRLE3 | Drymaria leptophylla (Cham. & Schlecht.) Fenzl ex Rohrb. | canyon drymary | Caryophyllaceae
|
| DRMO2 | Drymaria molluginea (Lag.) Didr. | slimleaf drymary | Caryophyllaceae
|
| DRPA3 | Drymaria pachyphylla Woot. & Standl. | thickleaf drymary | Caryophyllaceae
|
| DRSP7 | Drymaria sperguloides Gray | Drymaria molluginea | Caryophyllaceae
|
| DRTE2 | Drymaria tenella Gray | Drymaria leptophylla | Caryophyllaceae
|
| DRVI4 | Drymaria viscosa S. Wats. | sticky drymary | Caryophyllaceae
|
| DRYMA | Drymaria Willd. ex J.A. Schultes | drymary | Caryophyllaceae
|
| DRAG | Drymocallis agrimonioides (Pursh) Rydb. | Potentilla arguta ssp. arguta | Rosaceae
|
| DRAR8 | Drymocallis arguta (Pursh) Rydb. | Potentilla arguta ssp. arguta | Rosaceae
|
| DRFI3 | Drymocallis fissa (Nutt.) Rydb. | Potentilla fissa | Rosaceae
|
| DRGL7 | Drymocallis glandulosa (Lindl.) Rydb. | Potentilla glandulosa ssp. glandulosa | Rosaceae
|
| DRAR9 | Dryobalanops aromatica Gaertner f. | Borneo camphor | Dipterocarpaceae
|
| DRYOB | Dryobalanops Gaertner f. | camphor | Dipterocarpaceae
|
| DRRU2 | Dryopetalon runcinatum Gray | rockmustard | Brassicaceae
|
| DRYOP2 | Dryopetalon Gray | dryopetalon | Brassicaceae
|
| DRAC | Dryopteris acutidens C. Christens. | pointed woodfern | Dryopteridaceae
|
| DRAM2 | Dryopteris ampla auct. non Kuntze | Ctenitis sloanei | Dryopteridaceae
|
| DRAN4 | Dryopteris angustifolia (Willd.) Urban | Thelypteris angustifolia | Thelypteridaceae
|
| DRAR3 | Dryopteris arguta (Kaulfuss) Watt | coastal woodfern | Dryopteridaceae
|
| DRAS3 | Dryopteris assimilis S. Walker | Dryopteris expansa | Dryopteridaceae
|
| DRAT | Dryopteris atropalustris Small | Dryopteris celsa | Dryopteridaceae
|
| DRAUL2 | Dryopteris augescens (Link) C. Christens. var. lindheimeri (C. Christens.) Broun | Thelypteris ovata var. lindheimeri | Thelypteridaceae
|
| DRAU6 | Dryopteris augescens (Link) C. Christens. | Thelypteris augescens | Thelypteridaceae
|
| DRAU5 | Dryopteris ×australis (Wherry) Small (pro sp.) | | Dryopteridaceae
|
| DRAUF2 | Dryopteris austriaca (Jacq.) Woynar ex Schinz & Thellung var. fructuosa (Gilbert) Morton | Dryopteris triploidea | Dryopteridaceae
|
| DRAUI2 | Dryopteris austriaca (Jacq.) Woynar ex Schinz & Thellung var. intermedia (Muhl. ex Willd.) Morton | Dryopteris intermedia | Dryopteridaceae
|
| DRAUS2 | Dryopteris austriaca (Jacq.) Woynar ex Schinz & Thellung var. spinulosa (O.F. Muell.) Fisch. | Dryopteris carthusiana | Dryopteridaceae
|
| DRAU8 | Dryopteris austriaca (Jacq.) Woynar ex Schinz & Thellung | Dryopteris campyloptera | Dryopteridaceae
|
| DRBE | Dryopteris ×benedictii Wherry | | Dryopteridaceae
|
| DRBO2 | Dryopteris ×boottii (Tuckerman) Underwood (pro sp.) | | Dryopteridaceae
|
| DRBR5 | Dryopteris brittonae Slosson ex Maxon | Thelypteris brittonae | Thelypteridaceae
|
| DRBU | Dryopteris ×burgessii Boivin | | Dryopteridaceae
|
| DRCA3 | Dryopteris campyloptera Clarkson | mountain woodfern | Dryopteridaceae
|
| DRCA11 | Dryopteris carthusiana (Vill.) H.P. Fuchs | spinulose woodfern | Dryopteridaceae
|
| DRCE | Dryopteris celsa (Wm. Palmer) Knowlt., Palmer & Pollard ex Small | log fern | Dryopteridaceae
|
| DRCH2 | Dryopteris chaerophylloides (Poir.) C. Christens. | Arachniodes chaerophylloides | Dryopteridaceae
|
| DRCI2 | Dryopteris cinnamomea (Cav.) C. Christens. | cinnamon woodfern | Dryopteridaceae
|
| DRCLA | Dryopteris clintoniana (D.C. Eat.) Dowell var. australis Wherry | Dryopteris australis | Dryopteridaceae
|
| DRCL | Dryopteris clintoniana (D.C. Eat.) Dowell | Clinton's woodfern | Dryopteridaceae
|
| DRCR5 | Dryopteris crinalis (Hook. & Arn.) C. Christens. | serpent woodfern | Dryopteridaceae
|
| DRCRA | Dryopteris cristata (L.) Gray var. australis (Wherry) Blomquist & Correll | Dryopteris australis | Dryopteridaceae
|
| DRCRC3 | Dryopteris cristata (L.) Gray var. clintoniana (D.C. Eat.) Underwood | Dryopteris clintoniana | Dryopteridaceae
|
| DRCR4 | Dryopteris cristata (L.) Gray | crested woodfern | Dryopteridaceae
|
| DRCY2 | Dryopteris cyatheoides (Kaulfuss) Kuntze | Thelypteris cyatheoides | Thelypteridaceae
|
| DRDE7 | Dryopteris decussata (L.) Urban | Thelypteris decussata | Thelypteridaceae
|
| DRDE8 | Dryopteris deltoidea (Sw.) Kuntze | Thelypteris deltoidea | Thelypteridaceae
|
| DRDE4 | Dryopteris dentata (Forsk.) C. Christens. | Thelypteris dentata | Thelypteridaceae
|
| DRDIA | Dryopteris dilatata (Hoffmann) Gray ssp. americana (Fisch.) Hultén | Dryopteris expansa | Dryopteridaceae
|
| DRDI2 | Dryopteris dilatata auct. non (Hoffmann) Gray | Dryopteris expansa | Dryopteridaceae
|
| DRDI3 | Dryopteris disjuncta (Rupr.) Morton | Gymnocarpium disjunctum | Dryopteridaceae
|
| DRDO4 | Dryopteris domingensis (Spreng.) Maxon | Thelypteris guadalupensis | Thelypteridaceae
|
| DRDO2 | Dryopteris ×dowellii (Farw.) Wherry | | Dryopteridaceae
|
| DRDR2 | Dryopteris dryopteris (L.) Britt. | Gymnocarpium dryopteris | Dryopteridaceae
|
| DREF2 | Dryopteris effusa (Sw.) Urban | Lastreopsis effusa | Dryopteridaceae
|
| DREX2 | Dryopteris expansa (K. Presl) Fraser-Jenkins & Jermy | spreading woodfern | Dryopteridaceae
|
| DRFI2 | Dryopteris filix-mas (L.) Schott | male fern | Dryopteridaceae
|
| DRFRF | Dryopteris fragrans (L.) Schott var. fragrans | fragrant woodfern | Dryopteridaceae
|
| DRFRR | Dryopteris fragrans (L.) Schott var. remotiuscula Komarov | fragrant woodfern | Dryopteridaceae
|
| DRFR | Dryopteris fragrans (L.) Schott | fragrant woodfern | Dryopteridaceae
|
| DRFU | Dryopteris fuscoatra (Hbd.) W.J. Robins. | crowned woodfern | Dryopteridaceae
|
| DRGE | Dryopteris germaniana (Fée) C. Christens. | Thelypteris germaniana | Thelypteridaceae
|
| DRGL3 | Dryopteris glabra (Brack.) Kuntze | kilaw | Dryopteridaceae
|
| DRGL4 | Dryopteris globulifera (Brack.) Kuntze | Thelypteris globulifera | Thelypteridaceae
|
| DRGOC | Dryopteris goldiana (Hook. ex Goldie) Gray ssp. celsa Wm. Palmer | Dryopteris celsa | Dryopteridaceae
|
| DRGO | Dryopteris goldiana (Hook. ex Goldie) Gray | Goldie's woodfern | Dryopteridaceae
|
| DRGO2 | Dryopteris gongylodes (Schkuhr) Kuntze | Thelypteris interrupta | Thelypteridaceae
|
| DRGU | Dryopteris guadalupensis (Wikstr.) C. Christens. | Thelypteris guadalupensis | Thelypteridaceae
|
| DRHA2 | Dryopteris hastata (Fée) Urban | Thelypteris hastata var. hastata | Thelypteridaceae
|
| DRHA | Dryopteris hawaiiensis (Hbd.) W.J. Robins. | Hawai'i woodfern | Dryopteridaceae
|
| DRHE3 | Dryopteris hexagonoptera (Michx.) C. Christens. | Phegopteris hexagonoptera | Thelypteridaceae
|
| DRIM | Dryopteris imitata C. Christens. | Thelypteris cordata var. imitata | Thelypteridaceae
|
| DRINF | Dryopteris intermedia (Muhl. ex Willd.) Gray var. fructuosa (Gilbert) Wherry | Dryopteris triploidea | Dryopteridaceae
|
| DRIN5 | Dryopteris intermedia (Muhl. ex Willd.) Gray | intermediate woodfern | Dryopteridaceae
|