鼻喙马先蒿 bi hui ma xian hao

Herbs perennial, 45--80 cm, glabrous except for arachnoid-lanate rachis and bracts of inflorescences. Roots short, fibrous. Stems erect, stout. Basal leaves long petiolate, lanceolate, longer than petiole, pinnatisect; segments linear-lanceolate, pinnatipartite, serrulate. Inflorescences to 20 cm, dense; bracts linear. Calyx ovate, 5--6 mm, deeply cleft anteriorly; lobes 5, triangular-lanceolate. Corolla yellow, 1.6--1.7 cm; galea margin long bearded; beak straight; lower lip ca. 9 mm X 1.5 cm. 2 filaments glabrous, 2 pubescent. Capsule obliquely ovoid, 9--10 mm. Fl. Jun--Jul, fr. Jul--Aug. 2n = 16.

Alpine and subalpine meadows. Xinjiang [Kazakhstan, Mongolia, Russia (W Siberia)].