Subshrubs. Stems spreading to erect-fastigiate, 10–45 cm, usually sparsely stellate-pubescent to glabrate, sometimes densely lanate. Leaves cauline, <tending to be deciduous in summer>; petiole 0–2 mm; blade linear, 5–11 × 0.5–2(–3.5) mm, surfaces stellate-pubescent to glabrate abaxially, sparsely stellate-pubescent to glabrate adaxially, lateral veins obscure abaxially. Inflorescences terminal, panicles or racemes; chasmogamous flowers 1–18 per panicle or raceme, cleistogamous 0. Pedicels 2–6 mm, <sparsely or not glandular-hairy>; bracts 2–4 × 0.3–0.5 mm. Chasmogamous flowers: outer sepals linear, 1.5–3.5 × 0.3 mm, inner sepals 3.5–5(–7.5) × 2–3 mm, apex acute to acuminate; <calyx stellate-pubescent, hairs to 1 mm>; petals obovate, 3–6 × 3–5 mm; capsules 2.8–3.8 × 2–2.5 mm, glabrous.
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