While  Gymnocladus is a small genus of leguminous trees, what genus is Chrysogonum?
Chrysogonum Chrysogonum is a genus of flowering plants in the daisy family. The plants are terrestrial herbs with yellow flower heads containing both disc florets and ray florets.
Gymnocalycium Gymnocalycium, commonly called chin cactus, is a genus of about 70 South American species of cactus. The genus name "Gymnocalycium" (from Greek, "naked calyx") refers to the flower buds bearing no hair or spines.