Rounded herb to 30 cm high. Branches loosely woolly. Leaves slender, semiterete, 5–20 mm long, silky-villous or eventually glabrous. Flowers solitary. Perianth woolly, 5-lobed. Stamens 5. Fruiting perianth woolly-villous or eventually glabrous; attachment small, basal; tube barrel-shaped, c. 2 mm high, hard (possibly fleshy outside when fresh), smooth or 5–10-ribbed; apex conical, woolly on lobes; spines 5, 0.5–1.5 mm long (the radicular one the shortest), recurved. Seed slightly oblique; radicle ascending.