Also of the genus Calotropis in order Gentianales, family Apocynaceae
Principally of the genus Asclepias in order Gentianales, family Apocynaceae
A monarch butterfly (Danaus spp).
Euphorbia peplus and Euphorbia heterophylla, in order Malpighiales.
Any of the thistles in one of the genera Cicerbita and Sonchus.