Annual or perennial herb, 10-30 cm, in loose tufts with numerous leafy stems and no flowering shoots at the base, velutinous to nearly glabrous, often with some glandular hairs particularly in the upper part. Leaves sessile, grass-green to bluish green, lower ones obovate-spathulate, higher ones ovate to narrowly elliptic, 10-25 by 3-10 mm, obtuse to acute, often narrowed towards the base, soft-hairy on both sides. Inflorescence most often lax. Flowers small, not surpassing 9 mm length, diameter 3-8 mm, elongating to 16 mm in fruit; bracts green, the upper ones with scarious margin. Sepals narrowly elliptic, 3-7 mm, velvety hairy outside, with glabrous, scarious margin. Petals obovate, emarginate or bilobed, as long as the sepals or shorter, sometimes absent. Stamens shorter than the sepals, anthers orbicular. Ovary ovoid, ovules numerous. Capsule cylindrical, slightly curved, 9-12 mm, dehiscing by 10 teeth. Seeds orbicular, 0.4-0.8 mm, reddish brown, finely verrucose.
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Plants perennial (very rarely annual). Inflorescences usually eglandular, occasionally viscid and glandular. Petals equaling sepals. Capsules 9-13 mm. Seeds 0.4-0.9 mm; tubercles small. 2n = ca. 122-152, usually 144.
A herb. It forms loose tufts and keeps growing from year to year. The stems are 20 cm long.
Herbs short-lived perennial. Petals shorter than or equaling sepals.
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