形態特徵

• Rhizome black, crooked, with short internode, covered with rudimental scale-sheath at nodes, bearing many thick roots about 0.5 cm in diameter.
• Flowering stem about 30 cm above ground; scape blackish, hardened, flattened, with several small sheaths; inflorescence usually branched, can last for more than 1 year, bearing several flower buds on terminal part, usually 1 or rarely 2 blossom at a time. Flowers opening widely, 1-1.3 cm across, lightly violet tinged green at ends of sepals; floral bracts triangular, small; pedicellate ovary about 1 cm long, dark-brown, glabrous.
• Sepals oblong, 7 mm long, 1.8 mm wide, obtuse. Petals oblong, 7 mm long, 2.5 mm wide, obtuse. Lip oblong, 7.5 mm long, 3.5 mm wide when spread out, more or less 3-lobed, adnate 1/4 of length to column from base, glabrous inside, forming a sac on front; mid-lobe of labellum erose-lacerate, acute, with margins curving upwards. Column white, 5 mm long, bearing short white hair on ventral side. Anther white, glabrous, fleshy.
• Capsules black, fusiform, erect.

物候

Mainly between March and September, but inflorescence with flowering buds can be seen year round.

分布

• 台灣 : grows on forest floor in Shuangliou Forest Recreation Area, Pingtung County at elevations of 400-500 m.

引用文獻

• Tsan-Piao Lin and Wei-Min Lin, Taiwania 56(4): 315-322. 2011.