Amsonia
923
728 observations17 genera
Apocynum
2259
1776 observations
Araujia
3580
2751 observations
Asclepias
9568
8226 observations
Calotropis
1115
772 observations
Carissa
3403
2584 observations
Catharanthus
11277
9929 observations
Cycladenia
25
25 observations
Cynanchum
5
2 observations
Funastrum
85
80 observations
Gomphocarpus
331
190 observations
Haplophyton
9
9 observations
Mandevilla
2
2 observations
Matelea
16
14 observations
Polystemma
2
2 observations
Vinca
17072
14614 observations
Vincetoxicum
653
396 observations