Plants annual, taprooted. Stems erect, many-branched from base, 10-40 cm, minutely viscid-glandular; small axillary tufts of leaves usually absent. Leaves not marcescent, distal sessile, proximal spatulate; blade linear or linear-lanceolate to linear-oblong, 10-30 × 1-4 mm, apex obtuse to subacute, glabrous or sparsely and minutely viscid-glandular. Inflorescences lax, 3-21(-30)-flowered cymes; bracts narrowly lanceolate, glandular-pubescent. Pedicels erect, slender, 2-15 mm, 0.5-3 times as long as sepals, glandular-puberulent Flowers: sepals ovate-lanceolate, 5-6 mm, margins narrow, apex acute to obtuse, minutely viscid-glandular; petals oblanceolate, 5-8 mm, 1.5 times as long as sepals, apex 2-fid; stamens 10; styles 3(-4). Capsules oblong-ovoid, straight, 8-11 mm, ca. 2 times as long as sepals; teeth 6, occasionally 8, erect to spreading, margins convolute. Seeds pale brown, ovate, 0.6 mm diam., tuberculate; testa not inflated. 2n = 36, 38.
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