Shrub up to 1 m, ± glaucous, glabrous. Flowering stems 7-12 cm, terminal or lateral from a persistent rosette of leaves that are obovate, shortly petiolate, 1-nerved, 20-35 x 13-15 mm. Median cauline leaves obovate-oblong. Cymes ± dense, 10-many-flowered. Sepals ovate-Ianceolate, 7-8 mm, very narrowly membranous-margined, scarcely keeled. Petals yellow, 15-18 mm. Capsule 5-6 mm. Fl. 3-4. Macchie on rocky serpentine slopes, or on limestone cliffs, 200-700 m.
Crete, Karpathos. E. Medit. element.