楔叶叉柱花 xie ye cha zhu hua

Herbs to 30 cm tall. Stems stout, 4-angled, pubescent. Petiole 2-5 cm, brown pubescent, soon glabrescent; leaf blade elliptic to elliptic-lanceolate, 10-20 × 5-7 cm, both surfaces brown or white pubescent, abaxially pale green, adaxially green, secondary veins 11-17 on each side of midvein, base cuneate and usually decurrent onto petiole, margin entire, apex acute to obtuse. Racemes borne on axillary brachyblasts, to 16 cm; rachis brownish pubescent with gland-tipped trichomes; bracts linear, 3-5 × ca. 1 mm; bracteoles linear, 3-4 × ca. 1 mm. Pedicels 2-5 mm. Calyx ca. 1 cm, outside brown pubescent, inside glabrous; lobes linear, ca. 9 × 1 mm, subequal. Corolla ca. 1.5 cm, outside pubescent; lobes oblong, ca. 2 × 1.5 mm, subequal. Staminal filaments pubescent; anther thecae ca. 1 mm. Style glabrous; stigma 3-lobed. Capsule ellipsoid, 5-6 mm. Seeds black, in 2 rows, pubescent. Fl. Mar-Apr.

● Forests or thickets by streams; 100-400 m. Yunnan.