| Noun | 1. | genus Rhexia - deer grass rosid dicot genus - a genus of dicotyledonous plants family Melastomaceae, family Melastomataceae, meadow-beauty family, Melastomaceae, Melastomataceae - a family of trees and bushes and herbs of order Myrtales; many are cultivated as ornamentals deer grass, meadow beauty - any of several plants of the genus Rhexia usually having pink-purple to magenta flowers; eastern North America |