生活型

herb

形態特徵

• Plants to 80 cm tall. Tuberoids ellipsoid, 3-5 cm long, densely hirsute. Stems slender, simple, with remotely spaced leaves on lower half, with narrow scales on upper half.
• Leaves 3 or more, alternate, ovate-lanceolate to oblong, 7-15 cm long, 2-3 cm wide, apex acute, decurrent at base, scales linear-lanceolate, 3-4 cm long.
• Peduncle up to 40 cm long, rachis ca. 10 cm long, ± densely many flowered; bracts linear-lanceolate, 15-25 mm long, 4-5 mm wide, acuminate; pedicel and ovary 20-25 mm long. Flowers white, ca. 3 cm across; dorsal sepal erect, ovate, 10-15 mm long, 5-8 mm wide, acute, 3-nerved; lateral sepals reflexed, obliquely ovate, 12-10 mm long, 6-8 mm wide; petals narrowly falcate, 8-10 mm long, 2.5-3 mm wide; lip flabellate, 15-20 mm long, 3-lobed, lateral lobes triangular or rectangular, 10-15 mm long, middle lobe linear, 8- 12 mm long, spur cylindrical, 3-4 cm, straight or slightly curved forward; column 5 mm wide; anther cells widely separate, nearly parallel; pollinia yellow, with slender caudicles ca. 2.5 mm long, viscidia triangular; stigma 2, with stalk under rostellar arm.

分布

• 台灣 : sunny grasslands from lowlands to ca. 2000 m, often with <i>Miscanthus</i>.
• 世界 : The Himalaya, China, Indochina, Thailand, India and Myanmar, extending to the Ryukyus andsouthern Japan.

引證標本

TAIPEI: Tsushanyuen, Shimada s. n. Jun 1914. TAOYUEN: Najaishan, Su 8548. NANTOU: Sun Moon Lake, Su 8505. CHIAYI: Alishan, Sasaki s. n. Oct 1928. KAOHSIUNG: Liukuei, Su 59. PINGTUNG: Luliaochi, Su 8071. TAITUNG: Sasaki s. n. Oct 1933.

參考文獻

• SU, Horng-Jye, Flora of Taiwan, second edition 5: 915. 2000.  (Fl. Taiwan 2nd edit.)