峨眉姜花 e mei jiang hua

Hedychium emeiense Z. Y. Zhu; H. panzhuum Z. Y. Zhu.

Pseudostems 1--2 m. Leaves sessile; leaf sheath slightly pubescent; ligule 3--5 cm, membranous; leaf blade elliptic-lanceolate or lanceolate, 20--50 × 4--10 cm, abaxially pubescent, base attenuate, margin membranous, apex caudate-acuminate. Spikes oblong, 15--20 × 3--6 cm; bracts imbricate, oblong to ovate, 3--4.5 × 2--4 cm, concave, 4- or 5-flowered; bracteoles tubular, membranous. Flowers yellow or yellow-white, fragrant. Calyx 3.5--4 cm, split on 1 side, apical margin entire. Corolla tube 7--8.5 cm, slender; lobes linear, 3--3.5 cm. Lateral staminodes wider than corolla lobes. Labellum erect, creamy yellow with an orange patch at base, obcordate, longer than wide, apex 2-lobed. Filament subequaling labellum. Ovary hairy. Stigma funnelform, margin bearded. Fl. Jul--Sep. 2 n = 34.

Forests; 500--800 m. Sichuan [India, Nepal].

Medicinal.