Herbs, winter annual, <often hemispheric tufts>. Stems erect, branched or unbranched. Leaves basal and cauline, alternate or subopposite; stipules absent; petiole present; blade margins entire; venation palmate. Inflorescences terminal, cymules or flowers solitary. Flowers bisexual, radially symmetric or weakly asymmetric; perianth and androecium perigynous; hypanthium completely adnate to ovary; sepals 5, connate proximally; petals 0 or (4–)5, white, <0–0.4 mm, much shorter than sepals>; nectary absent; stamens 5; staminodes 5, opposite petals, undivided, not gland-tipped; pistil 3-carpellate; ovary inferior, 1-locular, placentation parietal; styles 3, weakly connate proximally; stigmas 3; ovules 40–70. Fruits capsules, 1-locular, <3-valved>, obpyramidal, apex not beaked. Seeds 40–70 per fruit, oblong, not winged; aril absent. x = 23.
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