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932 gentians, dogbanes, madders, and allies species
Galium matthewsii
Galium munzii
Asclepias labriformis
Spigelia gentianoides
Ochrosia haleakalae
Hoya carnosa
Gentiana asclepiadea
Asclepias feayi
Asclepias meadii
Houstonia serpyllifolia
Psychotria ligustrifolia
Matelea reticulata
Amsonia jonesii
Asclepias oenotheroides
Asclepias pedicellata
Asclepias texana
Frasera paniculata
Gentianella auriculata
Gentianella microcalyx
Gentianella tortuosa
Gentianella wislizeni
Gentiana catesbaei
Gentiana pennelliana
Gentianopsis macrantha
Gardenia ternifolia
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