茨口马先蒿 ci kou ma xian hao

Herbs, perennial, 10--60 cm tall, pubescent throughout. Roots fascicled, slender. Basal leaves in a rosette; petiole (1--)2--10 cm; leaf blade lanceolate-oblong to ovate-elliptic, 2--8 cm; segments 4--10 pairs, oblique-ovate to triangular, pubescent, margin double dentate. Stem leaves absent or few, similar to basal leaves but with shorter petioles and smaller. Inflorescences capitate or racemose, elongating to more than 25 cm, lax; bracts leaflike. Pedicel ca. 9 mm. Calyx ca. 1 cm; lobes 5, unequal. Corolla pale yellow to rose, often purple spotted, to 3 cm; tube slightly longer than calyx; galea densely pubescent apically. 2 filaments pubescent, 2 glabrous; anthers apiculate. Fl. Jun--Sep, fr. Aug--Oct.

Dry stony pastures among Pinus and Rhododendron scrubs; 3000--4500 m. SW Sichuan, NW Yunnan [N Myanmar].