Life … Plants Vascular Plants Dicots Legumes, Milkworts, and Allies Legumes Sweet Peas and Vetchlings Sierra Nevada Peavine Lathyrus nevadensis cusickii subspecies Lathyrus nevadensis cusickii Lathyrus nevadensis cusickii Key traits Layer Vines Plant type Perennial Vine Wildflower From USDA PLANTS. Close