| Noun | 1. | genus Amorpha - American herbs or shrubs usually growing in dry sunny habitats on prairies and hillsides rosid dicot genus - a genus of dicotyledonous plants Papilionoideae, subfamily Papilionoideae - alternative name used in some classification systems for the family Papilionaceae amorpha - any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers |