Weak perennial (? or annual) herb, c. 2-45 cm, stems wiry, decumbent or ascending (or erect fide BAKH. f.), creeping and branching irregularly, rooting at the base, narrowly 4-6-lined when young, often becoming 2-lined. Leaves 0.2-1 ½ mm petiolate, 2½-\0½ by½-6 mm, broadly oblong or elliptic-oblong to oblanceolate or linear, apex rounded to subacute, apiculate to muticous, base rounded to cuneate, glaucous beneath, margin not or slightly recurved, spreading; c. 3 main lateral veins, ± parallel, with reticulate branchings, uniting near margin and apex with dense conspicuous reticulate venation; laminar glands pale, ± prominent or not, irregularly punctate; intramarginal glands dark or pale, irregular. Inflorescence 1-flowered, with flowering shoots in uppermost axil(s); pedicels usually exceeding uppermost leaves, (2-)5-17 mm in fruit. Flowers c. 7-10 mm ø, plane; buds narrowly ovoid, obtuse. Sepals 2½-5 by 0.6-1.4 mm, free, ± broadly or not imbricate, elliptic-oblong to linear, rounded to subacute or apiculate; laminar glands pale, punctate to shortly striate; margin entire to irregularly glandular-ciliate; submarginal to marginal glands black. Petals yellow, 3-7 by 2-2½ mm, oblong-oblanceolate, persistent; apiculus small, glandular or glandular-ciliate; laminar glands absent or few near apex, pale or black, punctate; margin entire or with few subsessile glands; marginal glands black. Stamens in 3 fascicles, c. 15-22, longest 2½-5½ mm, c. ¾-⅞ as long as the petals, persistent; anthers yellow, gland black. Ovary l½ mm long, narrowly ovoid; styles 3, c. 1½ mm, about as long as the ovary, gradually divergent; stigmas slightly capitate; placentas 3, axile. Capsule 3-5½ by 2-3½ mm, ± narrowly ovoid, densely and ± prominently longitudinally vittate or almost smooth. Seeds reddish brown, 0.7-0.9 mm, cylindric, not carinate, densely shallowly linear-reticulate.