Draba aizoides, 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 : 308-309

1. D. aizoides L. , Mantissa 91 (1767).

Caespitose; scapes usually 5-10 cm, glabrous. Leaves up to 1 -5 mm wide, linear, ciliate but otherwise glabrous. Inflorescence initially more or less condensed, later rather lax, 4- to 18-flowered; petals 4-6 mm, yellow, obovate-cuneate, equalling stamens. Silicula 6-12 mm, ellipsoid, flat, usually glabrous; style l-5-3(-6)mm. 2« = 16. • Mountains of C. & S. Europe from Pyrenees to Carpathians;

also in Britain (Wales). Al Au Be *Br Bu Cz G a Ge?Gr He Hs It Ju Po Rm Rs (W).

Variable in habit, size of flower and silicula, hairiness of silicula, style-length, etc., but the many named taxa are hardly sufficiently geographically differentiated to merit subspecific rank. A possible exception is subsp. zmudaeZapat., Rozpr. Wydz. Mat.-Przyr. Polsk. Akad. Um. (Biol.) ser. 3, 12 b: 230 (1912) from the Carpathians, with silicula up to 12 mm and style 6 mm.

D. brachystemon DC. , Reg. Veg. Syst. Nat. 2: 334 (1821) ( D. bertolonii sensu Thell. quoad pi. pyren., non Nyman), with stamens only 2-2-5 mm, and small usually hairy siliculae, is recorded from the E. Pyrenees and the Alps (Monte Rosa ). It is very rare and its relationship to 1 or to other species is very obscure.