Stems (0.05-)0.15-1.5(-2.3) dm. Basal leaves erect or ascending, blade subulate, (0.5-) 1-7(-10) cm, margins entire; cauline absent. Racemes (1 or) 2-12(-18)-flowered. Fruiting pedicels usually forming 30-50º angle with rachis, slender or slightly stout, 1-7(-10) mm, (sometimes terminal flower on longer pedicel to 18 mm). Flowers chasmogamous or cleistogamous; sepals usually persistent, rarely caducous, (0.5-)0.7-1(-1.3) × 0.2-0.5 (-0.7) mm; petals 1.2-1.5 × 0.2-0.5 mm; filaments 0.7-1 mm; anthers 0.1-0.2 mm; gynophore 0.2-0.7(-1) mm. Fruits (0.15-)0.2-0.35(-0.55) cm × 1.2-2(-2.5) mm. Seeds light brown, 0.8-1 × 0.5-0.8 mm. 2n = 30.