Alpinia jianganfeng T. L. Wu

Medicinal.

Pseudostems to 1 m. Ligule 2-cleft, ca. 2 mm, margin ciliate; petiole absent to 4 cm; leaf blade lanceolate or linear-lanceolate, 20--30 × 2--4(--6) cm, glabrous except hispid at subapical margin, base attenuate, apex narrowly caudate. Spikes erect, 10--20 cm; rachis tomentose; bracteoles very small. Flowers in clusters of 3 on rachis. Calyx cylindric, abaxially pubescent, apex 3-cleft. Corolla tube subequaling or slightly longer than calyx; lobes oblong, 8--10 mm, abaxially villous. Lateral staminodes linear, ca. 2 mm. Labellum obovate, 0.7--1.3 cm, margin crisped, apex 2-cleft. Stamen longer than labellum; anther ca. 4 mm. Ovary globose, pubescent. Capsule globose, 7--8 mm in diam., pubescent, apex with persistent calyx. Seeds 5 or 6. Fl. Apr--Jun, fr. Jun--Nov. 2 n = 48*.

Pseudostems 70--120 cm. Ligule 2-lobed, 2--3 mm, pubescent; petiole 0.5--3 cm; leaf blade oblong-lanceolate, 15--35 × 3--7 cm, glabrous on both surfaces, base cuneate, margin entire or ciliate, apex acuminate or caudate. Racemes 9--22 cm; bracts 2, linear, 6--20 cm; bracteoles semiorbicular, early deciduous. Pedicel 1--2 mm, pubescent. Calyx tubular, 1.2--1.5(--1.7) cm, pubescent, apex 2- or 3-lobed or 3- or 4-toothed. Corolla tube subequaling calyx, glabrous; lobes oblong, 6--7 mm, apex densely pubescent. Lateral staminodes purple, linear, 3--4 mm. Labellum yellow-white with purple stripes, ovate-orbicular or broadly ovate, 5--6 × ca. 6 mm, margin rounded toothed. Filament 4--6 mm; anther 4--6 mm. Capsule red, globose, 8--9 mm in diam., apex with persistent calyx. Seeds 9--12. Fl. May--Jun, fr. Aug--Nov.

C Sichuan (Emei Shan).

* Forests; 700--900 m.

* Shaded wet areas in forests. Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Yunnan.