Life … Plants Vascular Plants Dicots Staff-vines and Allies Bittersweet Family Mortonia Gregg's Saddlebush species 204 observations Gregg's Saddlebush Mortonia greggii Range United States Greener is more native, amber more introduced; paler is less certain. How this was decided Key traits Layer Shrubs Light Full sun Moisture Dry Plant type Perennial Shrub From USDA PLANTS and the Lady Bird Johnson Wildflower Center. Close