Description from Flora of China
Herbs perennial, to more than 1 m, usually branched apically, pubescent. Stems hollow. Stem leaves clasping, lanceolate-linear, 3--15 X 0.8--2.2 cm, pinnatipartite; segments to 24 pairs, oblong to lanceolate, pubescent, margin double dentate. Inflorescences long spicate, more than 30 cm, glandular pubescent; bracts leaflike below, ovate above, longer than calyx. Calyx 5--6.5 mm, densely white glandular pubescent; lobes 5, ± equal, serrate. Corolla white, 2--2.2 cm; tube ca. 1.2 cm, pubescent externally; galea purple-red apically, front yellow, navicular, margin densely bearded, apex mucronulate, bent slightly upward; lower lip ± sessile, ca. as long as galea, ciliate. Filaments glabrous. Capsule broadly ovoid, compressed, ca. 1.3 cm X 8 mm, apex acute. Fl. Jul--Aug, fr. Aug--Sep.
* Grassy slopes, Picea forests, Betula forests; 2200--3400 m. W Gansu, Nei Mongol, Qinghai, Shaanxi, N Sichuan, E Xizang.