Pseudobulbs 300–600 × 20 mm, tapered, light green to dark green, when young covered with up to 5 short, leaf-like bracts. Leaf solitary, 100–300 × 15–20 mm, light green to dark green, shortly pointed. Racemes 150–250 mm long, 15–35-flowered. Flowers 6–8 × 2–3 mm, pale green to yellowish. Sepals and petals recurved against ovary, partially twisted. Dorsal sepal 5–6 × 1.5 mm. Lateral sepals 5–6 × 2 mm. Petals 5–6 × 0.8 mm. Labellum 5–6 × 3 mm, notched or with a small point, with 2 low yellow ridges extending to bend.
Locally common, especially above 800 m altitude; found growing on trees and rocks in rainforest, often on sheltered slopes near streams.