Plants annual, with slender taproot. Stems decumbent or ascending, diffusely branched, 7.5–30 cm, densely covered and viscid with short, glandular hairs; small axillary tufts of leaves ab-sent. Leaves not marcescent, ses-sile distally, spatulate to pseudopetiolate proximally; blade 5–10 × 2–4 mm, covered with short, glandular and eglandular hairs; proximal blades oblanceolate, apex obtuse; cauline blades ovate or oblong-ovate, apex acute. Inflorescences lax, 3–30-flowered cymes; bracts lanceolate to ovate, herbaceous, glandular-pubescent. Pedicels straight, ultimately erect in fruit, slender, 2–15 mm, much longer than capsule, glandular. Flowers 4(–5)-merous; sepals lanceolate, 4–7 mm, margins narrow distally, apex acute or acuminate, glandular-pubescent, hairs usually not projecting beyond apex; petals ca. 3 mm, ca. 0.75 times as long as sepals, apex 2-fid; stamens 4(–5); styles 4(–5). Capsules narrowly cylindric, nearly straight, 5–7.5 mm, 1–1.5 times as long as sepals; teeth 8 or 10, erect, margins convolute. Seeds reddish brown, 0.5–0.7 mm, bluntly tuberculate; testa not inflated. 2n = 72.