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932 gentians, dogbanes, madders, and allies species
Rauvolfia sandwicensis
Rauvolfia tetraphylla
Richardia tricocca
Sabatia arenicola
Sabatia arkansana
Sabatia brachiata
Sabatia calycina
Sabatia capitata
Sabatia difformis
Sabatia gentianoides
Sabatia quadrangula
Spermacoce verticillata
Strumpfia maritima
Strychnos spinosa
Warszewiczia coccinea
Coccocypselum hirsutum
Galium uliginosum
Gardenia jasminoides
Gentianella campestris
Centaurium littorale
Blackstonia perfoliata
Cicendia filiformis
Ixora finlaysoniana
Crusea wrightii
Mandevilla lanuginosa
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