Life … Plants Vascular Plants Dicots Nightshades, Bindweeds, Gooseweeds, and Allies Morning-glory Family Intermediate Morning-glories Coast Morning Glory Calystegia macrostegia arida subspecies Calystegia macrostegia arida Calystegia macrostegia arida Key traits Layer Vines Plant type Perennial Vine Wildflower From USDA PLANTS. Close