Life … Plants Vascular Plants Dicots Legumes, Milkworts, and Allies Legumes Vetches Common Vetch Narrow-leaved Vetch subspecies Narrow-leaved Vetch Vicia sativa nigra Supports All 3 native animalssupported in the US Caterpillars Moths and butterflies raised on it Orange Sulphur, Western Sulphur 2 Flower visitors Pollinators and other flower visitors Silvery Blue 1 Key traits Layer Vines Plant type Annual Vine Wildflower From USDA PLANTS. Close