Life … Plants Vascular Plants Dicots Legumes, Milkworts, and Allies Legumes Sweet Peas and Vetchlings Nevada Sweet Pea Lathyrus lanszwertii aridus variety Lathyrus lanszwertii aridus Lathyrus lanszwertii aridus Key traits Layer Vines Plant type Perennial Vine Wildflower From USDA PLANTS. Close