无丝姜花 wu si jiang hua

Pseudostems ca. 1 m, base somewhat thickened. Leaves sessile; leaf sheath minutely pilose or glabrescent; ligule 5--10 mm, membranous, pubescent, apex truncate; leaf blade oblong or linear-elliptic, 10--60 × 3--10 cm, adaxially glabrous, abaxially densely pilose especially along midvein, base subrounded or cuneate, margin narrowly cartilaginous, often ciliate, apex subcaudate-acuminate. Spikes cylindric, 16--20 × 3--4 cm; bracts imbricate, dense, broadly ovate, 4--6 cm, 1-flowered, margin membranous; bracteoles 2, membranous, pilose. Calyx cylindric, ca. 3.5 cm, minutely pilose, apex 2-lobed. Corolla yellow, glandular punctate; tube narrowly cylindric, ca. 7 cm; lobes 1.5--2 cm. Lateral staminodes wider than corolla lobes. Labellum obovate, equaling lateral staminodes, apically 2-cleft for just over 1/2 its length, base truncate. Filament 1--2 mm; anther 7--10 mm. Stigma ciliate. Fl. Jul--Aug.

* Forests; ca. 1800 m. Xizang, NW Yunnan.