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4,118 species in Yellowstone National Park
Diplolepis polita
Doellingeria engelmannii
Dolichovespula maculata
Draba albertina
Draba stenoloba
Dracocephalum parviflorum
Dracocephalum thymiflorum
Dryas hookeriana
Drymocallis glandulosa
Dryopteris filix-mas
Ectemnius dilectus
Ectemnius dives
Eleodes carbonaria
Encalypta rhaptocarpa
Epicauta normalis
Epilobium palustre
Erebia pawloskii
Erebia theano
Ericameria discoidea
Erigeron humilis
Eriophorum gracile
Eriophorum viridicarinatum
Euphagus carolinus
Eurybia merita
Evagetes padrinus
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