Biscutella sempervirens, 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 : 328

11. B. sempervirens L. , Mantissa Alt. 255 (1771)

(inch B. montana Cav. , B. tomentosa Lag. ex DC. , B. rosularis Boiss. & Reuter , B. laevigata auct. hisp. pro parte).

Rhizome thick, woody, simple or branched, producing a single rosette or several rosettes of leaves; stems up to 50 cm, simple or branched. Basal leaves 3-1 2x 1-5 cm, variable in shape from oblong-lanceolate to broadly obovate or elliptical-spathulate, subentire to deeply sinuate-dentate, usually densely villous or tomentose; cauline leaves few, the lower resembling the basal in size and shape, the upper minute, linear. Raceme somewhat to very dense-flowered. Sepals 3-3-5 mm; petals 5-7 mm. Silicula 4-7 x 7-5-12 mm. 2/z=18. Limestone rocks. S. & S.E. Spain; Islas Baléares. Bl Hs.