Plants usually bulbose; bulb coat, when present, membranous. Stems slender or coarse, stout, branching or not, strongly flexuous, 3–10 dm. Leaves: basal withering, 1–2 dm; blade linear. Inflorescences subumbellate, 1–6-flowered; bracts 4–8 cm, bases dilated. Flowers erect; perianth open, cup-shaped; sepals usually with red-brown blotch at base, lanceolate-ovate, 2–4 cm, apex acute; petals lemon to golden yellow, with transverse line distal to gland, broadly cuneate to obovate, 3–5 cm; glands round, deeply depressed, densely covered with short hairs with branching, coralline tips, surrounded by conspicuously fringed membrane and club-shaped hairs; filaments ca. 10 mm; anthers purplish brown, oblong, 4–10 mm. Capsules erect, lanceoloid-linear, angled, 6–9 cm, apex acuminate. Seeds light yellow, translucent, flat. 2n = 16.
Dry, often rocky slopes; at elevations below 1,200 metres, usually on serpentine soils.
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It is a Mediterranean climate plant.