花叶山姜 hua ye shan jiang

Amomum vittatum Hance.

Rhizomes horizontally creeping. Pseudostems not developed. Leaves 2 or 3, erect; leaf sheath red-brown; ligule 2-lobed, short; petiole ca. 2 cm; leaf blade adaxially green with deep green stripes along veins, elliptic, oblong, or oblong-lanceolate, ca. 15 × 7 cm, glabrous, base acute, apex acuminate. Racemes with ca. 33 cm long peduncle; bracts oblong, ca. 2 cm, 2-flowered, late deciduous; bracteoles absent. Calyx purple, tubular, 1.3--1.5 cm, pubescent, apex 3-toothed. Corolla white; tube ca. 1 cm; lobes oblong, slightly longer than tube. Lateral staminodes subulate, 3--4 mm. Labellum white with red stripes, ovate, ca. 1.2 cm, margin crenate, apex reflexed, 2-cleft. Filament 5--10 mm; anther 5--8 mm. Ovary sericeous. Capsule globose, ca. 1 cm in diam., apex with persistent perianth ca. 1 cm. Fl. Apr--Jun, fr. Jun--Nov.

* Shady and humid places in mountain valleys; 500--1100 m. Guangdong, Guangxi, Hunan, Yunnan.