Petrorhagia alpina (Habl.) Ball & Heywood in Bull. Brit. Mus. (Nat. Hist.) Bot. 3 (4): 145. 1964. Gypsophila alpina Habl. in Neue Nord. Beytr. Phys. Geogr. Erd-Volkerb. 4: 57. 1783. Tunico stricta (Ledeb.) Fischer & C. Meyer, Index Sem. Hort. Bot. Petrop. 4: 50. 1837; Edgew. & Hook. f. in Fl. Brit. India 1: 216. 1874.

Herbs, annual, erect, branched, up to 40 cm high, glabrous. Basal leaves rosulate, linear-spathulate to oblong, usually acute and rarely obtuse at apex, 5 - 30 x 1 - 4 mm; cauline leaves linear, acute at apex, 1-nerved. Bracts not enclosing calyx. Calyx 2.5 - 5 mm long, glabrous, green; teeth acute to obtuse and mucronate, 1-nerved. Petals linear-oblong, entire, 3 - 6 mm long, not clawed, white. Seeds ovate-oblong, 0.7 - 1.2 x 0.4 - 0.9 mm, blackish brown with thickened margins, reticulately tuberculate.

Fl. May - July; Fr. July - Sept.

Distrib. India: Temperate and alpine regions. Jammu & Kashmir.

Pakistan, Russia and W. Asia.

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