Onobrychis arenaria subsp. arenaria

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 190

(a) Subsp. arenaria

( O. sativa auct. gall, pro max. parte, nonLam. O. borysthenica (Sirj.) Klokov , O. tanaitica Sprengel ):

Leaflets 5-12 pairs, 10-30 x l-5-4(-8) mm; calyx 4-7 mm, the teeth 1 -5-2- 5 times as long as tube, sparsely pubescent; corolla 8-10 mm; legume 4-6 mm, the margin with 4-6 teeth (0-5-2 mm). 2n = 14, 28. C. & E. Europe, extending westwards to C. France and southwards to C. Italy.