Distribution : Myanmar, Thailand, China. 

China, Yunnan ( Yunnan ) : Mengla ( Mengla ), Mengyuan ( Mengyuan ), epiphytic in limestone, 1000m.

Stem : Grows on stone, fallen leaves. Stems 10-36 cm tall, mixed with short glandular hairs and slender papillae.

Leaves : 3-5 leaves, flat, set in the base of the stem, inverted lanceolate to oval, apex slightly pointed or short pointed, ( 8-14 ) × ( 1 ). 3-2 cm, glabrous. Leafy bracts 1-3, erect or flat, lanceolate, apex acute or acuminate, 1.3-2.8 cm long.

Flowers : racemes, 6-11 flowers, inflorescence axis length 4-14 cm, short hairs ; bracts lanceolate, acuminate, ( 9-19 ) × ( 2.8-4 ) mm, shorter than ovary, glabrous. Flowers white, except lips and lateral sepals green. Ovary 15-22mm long. Sepals slightly pointed, 3 -veined ; middle sepals erect, suborbicular, ( 6.5-9 ) × 4 mm ; lateral sepals reflexed, ovate, ( 6-7 ) × ( 3.8-4.7 ) mm. Ovary 15-22mm long. Petals erect, adhesive to middle sepals, broadly ovate, apex slightly pointed, with 2-3 stripes, ( 6-8 ) × ( 4-6 ) mm. 8-11mm long, 3 deep cracks ; lobes subflexed, linear or oblong, ( 7-10 ) × ( 0.8-1.5 ) mm ; lateral lobes upward, linear to oblong, ( 12-15 ) × ( 0.8-1 ) mm ; from the cylinder, 20-30mm, far longer than the ovary. The anther tube is about 2 mm long, straight, rod-shaped stigma.