Common Vetch
Scientific name: Vicia sativa L.
Diagnostic features
Climbing, sprawling or procumbent annual to 1.5m.
Leaflets 3-8 pairs.
Tendrils usually branched.
Flowers 1-2(4), variously pink to purple, rarely white or yellow.
Fruits 4-12-seeded, glabrous to sparsely pubescent.
This species is keyed out on Page 2926 in the Text Key.
Key to the subspecies:
1a. Plant heterophyllous, the leaflets of upper leaves much (and abruptly) narrower than those of lower leaves; flowers ± concolorous, usually bright pinkish-purple.
.......................................... Vicia sativa nigra.
1b. Plant ± isophyllous, the leaflets of upper leaves little (and gradually) narrower than those of lower leaves; flowers usually bicolorous, the standard much paler than wings.
........................................................................ 2.
2a. Fruits smooth, usually glabrous, brown to black.
.................................... Vicia sativa segetalis.
2b. Fruits slightly constricted between seeds, often pubescent, yellowish to brown.
........................................ Vicia sativa sativa.
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