Erysimum cheiranthoides, L.

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 : 274

38. E. cheiranthoides L. , Sp. Pl. 661 (1753).

Annual, rarely biennial, up to 100 cm; hairs medifixed and stellate. Lower leaves oblong-lanceolate, acute, entire to sinuate-dentate, green. Pedicels 4-8 mm in flower, up to 16 mm in fruit, slender, patent. Sepals 2-4 mm, not or slightly saccate; petals (2-)3-6 x 1 -2 mm, pubescent on back; anthers 0-5-1 mm. Siliqua 10-50x 1- T 5 mm, square in cross-section, not or only slightly torulose, erecto-patent,green; style 0 -T 5 mm. Seeds O-8-T 3 mm. Throughout much of Europe but absent from most of the south. Au Be Br Cz Da Fe Ge Ga Ge Hb He Ho?Hs Hu Is It Ju No Po Rm Rs (N, B, C, W, E) Si Su.