密穗山姜 mi sui shan jiang

Alpinia densespicata Hayata; A. mediomaculata Hayata; Languas densespicata (Hayata) Sasaki; L. mediomaculata (Hayata) Sasaki.

Pseudostems 1--2 m. Leaves subsessile or shortly petiolate; ligule oblong, margin hirsute; leaf blade linear-lanceolate, glabrous except hirsute at margin. Spikes cylindric, 12--15 cm, densely flowered; rachis sericeous-villous; bracteoles obovate, ca. 1.5 cm, early deciduous. Calyx subcylindric, ca. 1.8 cm, split on 1 side, abaxially hirsute, apex 3-toothed. Corolla tube ca. 8 mm; lobes ca. 1.5 cm, margin ciliate, central lobe suborbicular, lateral ones narrower. Labellum ovate-rhomboidal, ca. 1.6 × 1.6 cm, base with 2 callosities, margin erose. Anther ca. 8 mm, apex 2-cleft. Ovary cylindric, ca. 3.5 mm, densely villous. Capsule globose, ca. 1.3 cm in diam., sometimes slightly ribbed, hirsute, base without persistent bracteoles, apex with persistent calyx. Fl. May, fr. Jul.

* Forests, montane regions; 400--800 m. Taiwan.