stem leafy, with spathaceous basal sheaths, which are dotted with red or black; leaves linear-lanceolate, acuminate (immature), 6 in. long, over 1/3 in. broad; scape 1 1/4–2 ft. long, flexuous, with a few short sheaths; racemes few- to many-flowered; bracts lanceolate, acute, minute; sepals oblong, acute or obtuse, 1/3 in. long, green; petals rather broader than the sepals, otherwise similar; lip purple with darker veins, obsoletely 3-lobed, compressed, cordate-ovate, recurved at the apex, margin crisped or undulate; side lobes nearly obsolete; disc with 2 thickened undulate keels extending nearly to the apex, and a smaller central and 2 outer keels; spur broad, compressed, didymous, strongly incurved; column slightly curved, acute, half as long as the sepals. null
