Stems slender, close-set, ascending or erect in upper part, us. branched below, (5)-15-(30) cm. long; branchlets pale green to reddish, uniformly or occ. bifariously pubescent. Lvs opp., alt. in floral region, rather distant, on petioles ± 1 mm. long. Lamina oblong to linear-oblong, 5-8-12 × 2-4 mm.; subcoriac., glab.; margins entire to remotely, sts distinctly, denticulate. Fls 5-(8) mm. diam.; calyx ± 4 mm. long, lobes ovate-lanceolate; petals white ± 6 mm. long. Capsules 10-25 mm. long, purplish red, slender, pubescent on angles at least when young; peduncles ± 2 cm. long, slender, pubescent. Seeds smooth or very minutely papillose.

n = 18

2n = 36

n = 18

Tufted slender herb 5-25 cm tall, often much-branched, perennating from buds near base, with short, crisp, erect or appressed hairs mostly confined to lines decurrent from margins of petioles, especially on upper part of stem. Lamina of lf narrowly elliptic, 0.3-2 cm × 0.1-0.4 cm. Floral tube 0.6-1.3 mm deep, strigillose outside. Petals white or pinkish, often flushed with pink after pollination, 2.5-8.6 × 1.8-5.5 mm. Capsule strigillose, sometimes very sparsely so, with denser lines of hairs conspicuous along the edges of valves and sometimes with a green suture line, 1.8-2.8 cm long; fruiting pedicel 1.3-2-(2.7) cm long.