阿尔泰马先蒿 a er tai ma xian hao

Herbs perennial, 20--40 cm tall. Stems usually single, often ascending, slender, sparsely long woolly, often shiny. Basal leaves few; petiole ca. 1/2 as long as leaf blade, glabrous; leaf blade linear-lanceolate, pinnatisect; segments oblong-lanceolate or lanceolate, dentate, teeth callose. Stem leaves smaller than basal leaves, shorter petiolate to sessile; leaf blade pinnatipartite at base; lobes pectinate anteriorly. Inflorescences long, with laxly arranged flowers; bracts 3-lobed, proximal ones sometimes longer than calyx, middle ones shorter. Pedicel short. Calyx narrowly campanulate, 1--1.2 cm, ± leathery, tinged purple punctate, glabrous or sometimes gray pubescent; lobes 5, triangular, very short, wider than long, 2 pairs of lateral lobes connivent. Corolla yellow, 2.5--2.7 cm; tube erect; galea falcate apically, ca. as long as tube; beak very short or ± absent; lower lip ca. as long as galea, long stipitate basally, ± ciliate. 2 filaments pubescent, 2 glabrous. Capsule oblong, ca. 1 cm, mucronulate. Fl. Jun--Jul, fr. Jul--Aug.

Alkaline meadows, Salix thickets. Xinjiang [Kazakhstan, Mongolia, Russia (Altay)].