A pendent epiphyte with an elongate stem 20–80 cm. long.. Leaves oblanceolate or narrowly elliptic, tapering to both ends, roundly unequally bilobed at the apex, 10–21 cm. long, 3–5 cm. wide, often rather crinkled.. Inflorescences pendent, 18–32 cm. long, 10–20-flowered; peduncle slender, 5.5–8 cm. long; bracts broadly ovate, obtuse, 5–8 mm. long, 7–23 mm. apart.. Flowers well spaced, white, tinged with orange-brown on the spur; pedicel and ovary 13–15 mm. long.. Sepals lanceolate, acuminate, 15–18 mm. long, 4.5–5.3 mm. wide.. Petals similar, 14–15 mm. long, 4–4.5 mm. wide.. Lip lanceolate, acuminate, 14–15 mm. long, 5 mm. wide.. Spur slightly incurved, 3.5–4.5 cm. long.. Column 2 mm. long; rostellum 4.5–5 mm. long; viscidium hyaline.
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Greenish or orange-tinged spur