毛穗马先蒿 mao sui ma xian hao

Herbs perennial, 10--30 cm tall. Roots clustered, thickened. Stems 1 to several, erect, unbranched, glabrous or sparsely pubescent. Basal leaf petiole shorter than blade; leaf blade elliptic-lanceolate, glabrous except for pubescent midvein, pinnatipartite; segments ovate or lanceolate, pinnatifid, dentate, teeth callose. Stem leaves alternate, short petiolate or distal ones sessile; leaf blade ovate-elliptic; segments incised-dentate. Inflorescences subcapitate, compact, elongating in fruit, to 15 cm, whitish lanate; bracts linear, longer than calyx. Calyx 5--6 mm; lobes 5, unequal, lanceolate, less than 1/2 as long as tube, entire. Corolla bright rose or white, 2.2--2.5 cm, glabrous; tube erect, slightly longer than lower lip; galea slightly falcate, beakless; lower lip glabrous, lobes denticulate. Filaments glabrous. Capsule ovoid, 8--10 mm, mucronate. Fl. May, fr. Jun.

Alkaline swampy meadows. Xinjiang [Kazakhstan, Mongolia, Russia (European part, W Siberia)]