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932 gentians, dogbanes, madders, and allies species
Galium collomiae
Houstonia correllii
Neobracea bahamensis
Galium intermedium
Richardia grandiflora
Gentianella uliginosa
Spermacoce dasycephala
Galium anglicum
Stenaria mullerae
Frasera pahutensis
Mitreola angustifolia
Asclepias mellodora
Geniostoma waialealae
Asclepias scaposa
Kadua foliosa
Galium pumilum
Periploca sepium
Leptodermis oblonga
Gonolobus suberosus
Geniostoma tinifolium
Galium coloradoense
Asclepias ruthiae
Asclepias mexicana
Amsonia orientalis
Araujia odorata
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