|Vicia sativa ssp. nigra
is a biennial herb inhabiting sunny roadsides or fields, with
8-16 leaflets, 1 to 3 from the top of them generally growing into
three tendrils. The leaflets are narrow obovate with dents at the
top ends. Flowers come from leaf axils - purple, 1.2-1.8cm in
diameter. Legume (fruit): 3-5cm in length. Bloom time: March-June.