Plants to 100 cm. Roots numerous, 1.5–3 mm diam. Stems pseudobulbs, ovoid to subglobose, 2–5 cm diam. Leaves: blade narrowly elliptic to narrowly oblanceolate, 25–75 × 1.5–4 cm, apex acuminate. Inflorescences 39–118 cm; floral bracts ovate-triangular to lanceolate, 1–3 mm, apex acute to acuminate. Flowers 5–22, pink to rosy purple, rarely entirely white; dorsal sepal elliptic-oblanceolate, 30–40 × 6–8 mm, apex acute to acuminate; lateral sepals similar but falcate; petals erect, oblong-elliptic, 30–35 × 5–6 mm, thinner than sepals, apex obtuse; lip adnate to base of column, clawed, 3-lobed, 30–35 × 27–31 mm, middle lobe subquadrangular, flabellate, emarginate, margins crispate-undulate, lateral lobes erect, flanking column, rounded to subquadrangular, broadest distally; disc lamellae 5, middle 3 white; column clavate, 23–25 mm, column foot absent; pedicellate ovary slender, 20–35 mm. Capsules pendulous, 3–4.5 cm × 8–10 mm.
