帕兰氏马先蒿 pa lan shi ma xian hao

Herbs perennial. Stems single, to 45 cm tall, erect, rigid, hollow, striate, leafy. Leaves linear-oblong, 7--10 X 1.5--2 cm, base auriculate, pinnatisect; segments 15--25 pairs, ovate-oblong, margin acute-dentate. Inflorescences erect, dense; bracts linear-oblong, basal ones longer than flowers, upper ones shorter than calyx. Pedicel 2--3 mm. Calyx ca. 1.6 cm X 5 mm, membranous, hirtellous; lobes 5, unequal. Corolla tube ca. 1.7 cm, slightly longer than calyx; galea navicular, margin not bearded, sparsely pubescent abaxially; lower lip stipitate basally, ciliate. Filaments glabrous. Fl. Jul, fr. Aug.

Scrubby slopes; 3000--3700 m. S Xizang [N Bhutan].