Life … Plants Vascular Plants Dicots Nightshades, Bindweeds, Gooseweeds, and Allies Morning-glory Family Intermediate Morning-glories Low False Bindweed Shale Barren Bindweed subspecies Shale Barren Bindweed Calystegia spithamaea spithamaea Key traits Layer Vines Plant type Perennial Vine Wildflower From USDA PLANTS. Close