vicia villosa, known as the hairy vetch, fodder vetch or winter vetch, is a plant native to some of europe and western asia. it is a legume, grown as a forage crop, fodder crop, cover crop, and green manure. although non-native, it occurs in all us states and is considered invasive by some states, such as alaska, florida, georgia, michigan, minnesota, oregon, and washington state — as well as in japan and some parts of europe where it is not native. it is also found in most canadian provinces.