柴续断 chai xu duan

Stems finely striate, densely tawny stellate pubescent, much branched. Petiole 2-5 cm; upper stem leaf blades ovate, 6.5-11 × 3-8 cm, adaxially densely stellate pubescent, very sparsely stellate strigose, hairs with longer central arms, abaxially densely stellate pilose, base broadly truncate-cuneate, margin serrate, apex acute. Verticillasters 2-5, many flowered, conspicuously pedunculate; upper floral leaves almost as long as verticillasters; bracts linear, 3-7(-9) mm, herbaceous. Calyx tubular, ca. 11 × 3 mm, densely stellate pubescent; lobes double toothed, spines ca. 1.2 mm, teeth tufted hairy inside. Corolla white, ca. 2 cm; tube ca. 1.3 cm, apex silky-villous outside, pilose annulate inside; upper lip ca. 6.5 mm, margin fringed, very densely silky-villous outside, bearded inside; lower lip ca. 6 × 6 mm, silky-villous except for margin outside, middle lobe obovate, lateral lobes ovate. Filaments hairy, without basal appendages. Nutlets glabrous. Fl. Aug.

* Grasslands; ca. 2000 m. Sichuan (Qingchuan Xian).