Erect or ascending, many-stemmed perennial to 30 cm tall. Leaves linear, acute, sometimes dentate, thick; lamina to 4 cm long, 0.5-2 mm wide. Inflorescence with bracts similar to leaves; peduncles 1-3 cm long; bracteoles linear, 10-20 mm long. Sepals triangular, 1-2 mm long. Corolla 9-16 mm long, white or pink, rarely yellowish or lavender, with dark lines in throat; lobes oblong, to 14 mm long; wings rounded at apex, to 2 mm wide. Style c. 2 mm long, hairy; indusium compressed-hemispherical, 1 mm long, c. 2 mm wide. Fruit ellipsoidal, 3-4 mm long.