柱穗山姜 zhu sui shan jiang

Pseudostems ca. 1.5 cm. Ligule 2-cleft, abaxially villous, lobes deltoid, 2--4 mm; petiole 2.5--4.5 cm; leaf blade lanceolate, 30--60 × 5--9 cm, glabrous except golden velvety along midvein abaxially and at margin, base attenuate, apex acuminate, caudate-mucronate. Spikes pendent, cylindric, 7--9 × 1.5--2.5 cm; bracts ovate, less than 8 mm, densely golden velvety; bracteoles ca. 5 mm, densely golden velvety. Flowers yellow. Calyx ca. 3 mm, split to base on 1 side. Corolla tube ca. 5 mm, pubescent at throat; lobes ovate-oblong, ca. 6 mm, central one larger than lateral ones. Labellum subequaling corolla lobes, narrow, apex 2-cleft. Filament ca. 4 mm; anther ca. 3 mm. Ovary obconical, ca. 1 mm. Capsule red, globose, ca. 1.2 cm in diam., dry and brittle. Fl. Jul, fr. Sep--Nov.

* Forests. Guangxi.