Satyrium robustum Schltr.

A terrestrial herb 2.5–7 dm. high, glabrous except for the roots.. Tubers small, ovoid or ellipsoid, 1–2 cm. long, 5–8 mm. in diameter, ± tomentose.. Roots in a tuft, numerous, flexuous, pubescent.. Stem erect, rather stout, terete, leafy along its length.. Leaves 7–11, mostly bunched towards the base of the stem; lowest one sometimes sheath-like, 4–6 above spreading or suberect, sometimes ± recurved, lanceolate to broadly ovate, acute, the largest 8–28 cm. long and 3–5.5 cm. broad, upper ones sheathing, often much smaller than the lower ones, lanceolate, acute.. Inflorescence cylindrical, 5–24 cm. long, 3–4 cm. in diameter, densely 11-to many-flowered; bracts soon reflexed, lanceolate, acute, 1.3–3.2 cm. long, lower ones longer than the flowers.. Flowers spreading or half-spreading, usually bright pink to crimson, sometimes paler pink; ovary with pedicel curved, ± 1 cm. long.. Sepals and petals projecting forwards, united to one another and to the lip in their basal quarter or fifth only.. Intermediate sepal oblanceolate, obtuse, 8–12 mm. long, 2–3 mm. broad; laterals obliquely oblanceolate-oblong or elliptical-oblong, obtuse, equalling the intermediate but slightly broader.. Petals similar to the intermediate sepal; all tepals 2–3-veined.. Lip very convex, hooded, the extreme apex shortly recurved, 7–10 mm. long, the mouth 6–7 mm. broad, 2-spurred at base.. Spurs slender, parallel to the ovary, 12–18 mm. long, ± 1.5 mm. in diameter at the base.. Column erect, enclosed by the lip, the slender stalk equalling or exceeding the fertile part in length, 6–8 mm. high; anther-loculi pendent, ellipsoid; stigma erect, semi-orbicular, 2.5–3 mm. broad, rostellum projecting downwards, 3-lobed, the side lobes short, acute, the middle lobe much longer, spoon-shaped from a narrower base.

It is a tropical plant.