Epiphytic, perennial herbs. The stem is clustered, about 10-15 cm long, nearly rod-shaped, middle and upper part expanded, lower part narrowed, with membranous sheath, node, top with 3-4 leaves.

Leaves round lanceolate, about 6 cm long, about 1.5 cm wide, apex nearly acuminate, base with joints ;

The inflorescence grows from the upper part of the stem, with 1-2 flowers. The bracts are yellow, 2 opposite, nearly ovate, about 1 cm long, with short tips at the apex. pedicels together with ovary ca. 1 cm long, densely covered with white hairs ; flowers yellow, middle sepals subovate lanceolate, ca. 1cm long, ca. 4mm wide, abaxially hairy, apex obtuse ; petals sublong, ca. 8 mm, apex obtuse ; lateral sepals sub-wide sickle-shaped, ca. 8 mm long, ca. 7 mm wide, abaxially hairy, apex sub-acutely acuminate, base fused with style to form sepals ; lip flap 3-lobed, lateral lobes semicircular, erect, margin with short villi ; the middle lobe ( purple middle lobe ) is light yellow, the apex is dark yellow, with white long villi, the lip disc has three ridge protrusions, two sides are nearly equal in length, and the middle one is near the middle lobe apex, and the apex is concave ; the column is about 5mm long, the column foot is about 5mm long, curved upward, dark yellow. Flowering : January-April, fruit period August.