Crambe aspera, Bieb.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 344-345

5. C. aspera Bieb. , FI. Taur.-Cauc. 2: 90 (1808).

Densely hispid. Leaves deeply pinnatifid to 2-pinnatisect. Petals 5- 7 mm. Upper segment of silicula 7-9 mm, not 4-angled; pedicels up to 13 mm. • S.E. Russia, E. Ukraine and Krym. Rs (K, E).

This species has been erroneously recorded from a number of other territories. Such plants usually have the upper segment of the silicula smaller and 4-angled and are included here in 2.

C. gibberosa Rupr. , Mem. Acad. Sci. Pétersb. (Sci. Phys. Math.) ser. 7, 15 (2): 136 (1869) has been recorded from S.E. Russia (Chelbasskaja and Kizljar). It is like 5 but 30-50 cm (not 40-100 cm); upper segment of silicula smooth, obtuse (not rugose-tuberculate and slightly apiculate) but it is doubtful if it is specifically distinct from 5.