Noun | 1. | ![]() rosid dicot genus - a genus of dicotyledonous plants Papilionoideae, subfamily Papilionoideae - alternative name used in some classification systems for the family Papilionaceae Apios americana, Apios tuberosa, groundnut, groundnut vine, Indian potato, wild bean, potato bean - a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans |