Source: Magness et al. 1971
This vetch is intermediate in winter bardiness between hairy and common. Its special virtue is tolerance to wet soils. It is mainly grown as a hay crop on heavy soils in western Oregon where winter precipitation is heavy. Plants are pubescent. Leaves consist of 4 to 8 pairs of linear to oblong leaflets. in Oregon it is commonly fall seeded with a grain crop for partial support. It produces a palatable and nutritious hay on soils poorly adapted for other vetches.