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Lip 27–35 × 30–32 mm, obscurely 3-lobed, with a callus of 5 ridges becoming lower and undulate towards the apex; mid-lobe 12 × 12–19 mm, transversely oblong, side lobes rounded; spur 5–10 mm long, conical, pointing backwards.
Flowers subnutant; sepals greenish-purple or brownish, glossy; petals bright mauve-pink, lip paler mauve-pink with white or yellow lamellae.
Inflorescence to 120 cm high, densely several-to many-flowered; scape stout, 10–18 mm in diameter, with 4–5 loose sheaths along its length.
Sepals reflexed, 20–27 × 12–15 mm, obovate, apiculate, the laterals slightly larger than the dorsal and oblique.
Leaves 2–5, 30–70 × 3–8 cm, lanceolate, acuminate, petiolate, ribbed, not fully developed by flowering time.
Perennating organs subterranean, 3–4 × 2–3 cm, obliquely conical; roots 3–4 mm in diameter.
Bracts 30–55 × 15–40 mm, elliptic, acute, in opposite pairs, each enclosing 1–2 flowers.
Petals 22–28 × 25–30 mm, porrect, ± orbicular.
Habit as in E. horsfallii, 3-6 ft. in height
Pedicel and ovary 25–35 mm long.
Capsule pendent, c. 35 mm long.
Flowers purple, pink and white.
Large terrestrial herb.
Column 12–14 mm long.
