While  Gymnocladus is a small genus of leguminous trees, what genus is Chrysogonum?
Gymnocladus Gymnocladus (Neo-Latin, from Greek γυμνὀς, "gymnos", naked + κλάδος, "klados", branch) is a small genus of leguminous trees. The common name coffeetree is used for this genus.
Helicotropis Helicotropis is a small genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Faboideae. Species in this genus were formerly considered to belong to the genus "Vigna".