Caespitose herb with ∞ close-set stems, decumbent at base then erect or ascending, 10-15-(25) cm. long; branches pale green or reddish, bifariously to uniformly pubescent, becoming glab. Lvs opp., crowded to approximate, floral alt., subsessile or with petiole not > 1 mm. Lamina (5)-10-14 × (3)-5-8 mm., broad-ovate to ovate-elliptic or ovate-oblong, thin, glab.; margins remotely, obscurely toothed. Fls ± 4-6 mm. diam.; calyx-lobes lanceolate; petals white or faint rose, us. ± twice length of calyx. Capsules glab. or nearly so, brown, 25-40-(50) mm. long; peduncles 20-40 mm. long, reddish, faintly puberulous. Seeds glab.