Alsine tenuifolia Crantz var.regeliana Trautvetter, Bull. Soc. Imp. Naturalistes Moscou 33(1–2): 156. 1860.

Herbs annual, 5--10 cm tall. Stem solitary, branched from base, slender, glabrous. Leaves linear, 2--10 × 0.3--0.5 mm, 3- or 5-veined, base often ciliate. Cyme sparsely flowered. Pedicel filiform, 3--12 mm. Sepals ovate-lanceolate, 2.5--3.5 × 0.5--1 mm, 3-veined in proximal 1/2, base rounded, margin broadly scarious, apex mucronate. Petals oblong, shorter than sepals. Stamens 3--10. Ovary broadly ovoid. Capsule suboblong-ovoid, usually exserted. Seeds brown, compressed globose, ca. 0.5 mm, finely tuberculate. Fl. Apr--May, fr. Jun--Jul.

Steppes, wastelands, saline-alkaline soils; 600--700 m. Xinjiang [Kazakhstan, Mongolia, Russia, Turkmenistan; SW Asia].