散黄芩 san huang qin

Herbs rhizomatous. Stems decumbent, flexuous ascend-ing, densely pubescent except for angles. Petiole 1-1.5 cm; leaf blade lanceolate-oblong to lanceolate-ovate, 3-6 × 1-2 cm, herbaceous, sparsely strigose, base subrounded, margin irregularly double serrate, apex acuminate. Racemes terminal, 6-17 cm; bracts sublanceolate-ovate, as long as pedicels. Pedicel ca. 3 mm, densely glandular pubescent. Calyx ca. 2 mm, ca. 3.5 mm in fruit; scutellum semicircular, ca. 1.5 mm, to 3 mm and conspicuously reflexed in fruit. Corolla purplish, ca. 1.5 cm, initially finely pubescent outside, soon becoming subglabrous; tube bent at base, ca. 4 mm wide at throat; middle lobe of lower lip subcircular, base constricted, apex emarginate; lateral lobes ovate. Nutlets unknown. Fl. Mar-Apr.

* Evergreen forests; 2000-2600 m. Yunnan.