Rhynchosinapis cheiranthos, (Vili.) Dandy

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 : 341

3. R. cheiranthos (Vili.) Dandy , Watsonia 4: 41 (1957)

( Brassicella erucastrum O. E. Schulz pro parte, Brassica cheiranthos Vili. ).

Annual to short-lived perennial with a slender more or less perpendicular taproot or somewhat divided stock; stems more or less hispid below. Leaves pinnatipartite or pinnatisect, with 3—5(—9) pairs of lobed or toothed segments, or sometimes simple, dentate, sparsely hairy or densely hispid on both surfaces. Sepals 5-10 mm; petals bright yellow with darker or rarely reddish veins. Siliqua 3-8 cm x 1-5-2 mm, ascending, patent or somewhat recurved; pedicels 2-15 mm, patent or arcuate; beak 8-22 mm, attenuate, with 1-3 seeds. 2« = 48. W. Europe extending to C. Italy; mainly in the mountains. Be Ga Ge Hs It Lu [Br He Ho]. An extremely variable species divisible into at least two subspecies and a number of distinctive local geographical races. In addition sporadic but distinctive variants in habit, leaf, fruit, etc. occur in various parts of its range and make an overall delimitation of the species difficult.