Annual, 7-12 cm. Stem filiform, simple, bearing 1 or, sometimes, 2 flowers. Rosulate leaves 2-5, linear, subulate, 3-nerved, 3-5 mm by 1 mm. Stem leaves scale-like, appressed, linear-lanceolate, acuminate to subulate, up to 3 mm. Bracts ovate-lanceolate, long-acuminate, 3-nerved, 1½ mm. Flowers bluish, very narrowly 3-winged, 7 mm. Outer perianth lobes triangular to broad-ovate, apiculate, about 1½ mm. Inner ones linear, obtuse, ½-1 mm. Connective thick, triangular, obtuse at the base, bearing two divergent, slightly papillose crests at the apex. Style rather short and thick, bearing 3 sessile, funnel-shaped stigmas; style with stigmas about 1½ mm. Ovary ellipsoid to narrowly obovoid, about 4 mm. Flower wings linear, about 5½ mm by ¼ mm. Capsule obovoid, dehiscing with transverse slits. Seeds ovoid, bright yellow.