抽葶大青 chou ting da qing

Subshrubs 30-50 cm tall. Branchlets greenish when young, becoming gray-brown, shiny, and glabrous. Petiole subglabrous, 7-18 cm but leaf subsessile below inflorescence; leaf blade ovate, 5.5-15 4.5-13 cm, membranous, abaxially gray and subglabrous to sparsely small glandular especially along veins, adaxially pubescent and gray glandular, base cordate, margin irregularly serrate, apex acuminate to acute. Thyrses of 3-5-flowered cymes, 30-40 cm; peduncle purple, sparsely small glandular; bracts linear to narrowly lanceolate, 3-7 mm; bractlets linear, ca. 2 mm. Pedicel slender, 1.5-2.5 cm. Calyx campanulate, ca. 2 2-4 mm, truncate to minutely 5-dentate, glabrous. Corolla bluish purple, deeply 5-lobed, sparsely glandular; tube slender, ca. 5 mm; lobes elliptic to obovate, ca. 5 mm. Stamens and style long exserted. Fruiting calyx not enlarged. Drupes ca. 3 mm in diam., apically glandular.

Mountain slopes; 1400-2100 m. S Yunnan [India, Vietnam].