唇柄姜 chun bing jiang

Pseudostems 1--1.6 m, base purplish red. Leaf sheath green, with conspicuous, longitudinal stripes; ligule emarginate, ca. 6 mm; petiole ca. 4 mm; leaf blade narrowly lanceolate, 24--30 × 3.5--4.5 cm, glabrous, base rounded or cuneate, apex acuminate or caudate. Inflorescences arising from rhizomes, oblong or narrowly ellipsoid, 12--17 × 4--5 cm; peduncle erect, 11--19 cm; bracts green when young, becoming red, purplish red at apex, nearly white at margin, ovate or broadly so, 3--4.5 × 2.5--3.5 cm, puberulent; bracteoles tubular, ca. 2.5 cm. Flowers white, glabrous. Calyx ca. 1.5 cm, apex 1-toothed. Corolla tube ca. 3.8 cm; lobes lanceolate, ca. 1.7 × 1 cm, central one wider than lateral ones. Labellum white; central lobe suborbicular, ca. 1.8 × 1.2 cm, base narrowed into a claw, apex emarginate; lateral lobes red at basal margin, ca. 1.1 cm × 3 mm, apex acute. Anther sessile, ca. 1 cm; connective appendage ca. 6 mm. Ovary pale green, densely white pubescent. Fl. Jul.

* Moist places in forests; ca. 1200 m. W Yunnan (Ruili Xian).