Herbs perennial, erect, branching at or just below ground level and in inflorescence, 2–7.5 dm. Stems: internodes 4-lined. Leaves appressed, sessile; blade linear-subulate, (1–)2.5–4 × 0.2–0.3 mm, subcoriaceous, margins incurved, apex acute, basal vein 1, midrib unbranched. Inflorescences subcorymbiform, to 13-flowered, branching mostly dichasial. Flowers 3–4 mm diam.; sepals ovate to elliptic or narrowly oblong, unequal, 1.5–2 × 0.6–1 mm, <margins sometimes ciliate, not setulose-ciliate>, apex acute to subacute; petals yellow, obovate-oblong, 3.5–5 mm; stamens 20–25, irregularly arranged; styles 1.5–2 mm; stigmas capitate. Capsules narrowly ovoid-conic, subrostrate, 3.5–6 × 1–1.5 mm. Seeds 0.5–0.6 mm; testa scalariform-reticulate. 2n = 12.
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