双翅舞花姜 shuang chi wu hua jiang

Pseudostems 30--50 cm. Leaves 5 or 6; ligule short; petiole ca. 5 mm; leaf blade elliptic-lanceolate, 15--20 × 3--4.5 cm, glabrous, base obtuse, apex caudate. Inflorescence a pendulous raceme or thyrse, 3--11 cm; bracts lanceolate, 6--12 mm; cincinni (if present) 1--2.5 cm, laxly 2- to many flowered; bulblets present, globose or ovoid, 2--4 mm in diam., tuberculate. Flowers yellow or wholly reduced. Calyx campanulate, 4--5 mm. Corolla tube 8--10 mm, pubescent; lobes ovate. Lateral staminodes lanceolate, curved. Labellum yellow, orange spotted at base, narrowly cuneate, apex 2-cleft. Filament curved, ca. 1 cm; anther with 2 winglike appendages on each side. Ovary tuberculate. Fl. Aug--Sep.

Forests; ca. 1300 m. S Yunnan [Myanmar, Thailand, Vietnam].