亚麻叶碱蓬 ya ma ye jian peng

Chenopodium linifolium (Pallas) Roemer & Schultes; Lerchea linifolia (Pallas) Kuntze; Schanginia linifolia (Pallas) C. A. Meyer.

Herbs annual, 20-70 cm tall. Stem erect, densely or sparsely branched, terete, slightly striate, base to 6 mm in diam.; branches obliquely spreading, long, usually thin. Leaves usually obliquely spreading or suberect, linear, semiterete or compressed, 1-2.5 cm × 2-3 mm, base contracted, appearing shortly petiolate, apex acuminate. Glomerules inserted on petiole, not or only shortly pedunculate, usually 1-flowered, sometimes 2- or 3-flowered; bracts and bractlets ovate, membranous. Flowers bisexual and female. Perianth cylindric to obovoid, 1.5-3 × 1-2 mm, 5-lobed, fleshy; segments usually remaining closed at anthesis, slightly cucullate. Anthers oblong, ca. 0.4 mm. Stigmas 2 or 3, exserted, filiform, very short. Utricle completely enclosed by perianth; pericarp membranous. Seed vertical, black, glaucous, not lustrous, obliquely ovoid, slightly compressed, 1.5-2 × 1.2-1.5 mm, pitted, rim margin obtuse; radicle inferior. Fl. and fr. Jul-Oct.

Gobi desert, strongly saline-alkaline deserts, dry prairies, wet banks. Xinjiang [Russia (SE European part, SW Siberia); C Asia].