短穗山姜 duan sui shan jiang

Alpinia sasakii Hayata; A. tarokoensis (Sasaki) Hayata; Languas pricei (Hayata) Sasaki; L. sasakii (Hayata) Sasaki; L. tarokoensis Sasaki.

Pseudostems ca. 1 m. Ligule oblong, ca. 5 mm, margin ciliate, apex obtuse; petiole ca. 1 cm; leaf blade linear-lanceolate, ca. 30 × 2--3 cm, glabrous or abaxially pubescent, base attenuate, apex acuminate. Racemes ca. 10 cm; rachis pubescent. Pedicel ca. 2 mm, hirsute. Calyx campanulate, ca. 1 cm, split on 1 side, abaxially hirsute. Corolla tube campanulate, ca. 6 mm, adaxially hirsute, abaxially glabrous, apex ca. 4 mm wide; central lobe obovate, ca. 2 × 1 cm, margin ciliate; lateral lobes narrower than central one. Lateral staminodes absent. Labellum obovate, ca. 2 × 2 cm, base cuneate, margin contracted above middle, crenate, apex shortly 2-cleft. Filament flattened, ca. 1.2 cm, glabrous; anther ca. 7 mm. Ovary globose, ca. 1.5 mm in diam., villous. Fl. Mar.

* Taiwan.