四川山姜 si chuan shan jiang

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.

* Forests; 700--900 m. C Sichuan (Emei Shan).