rhizome stout and woody, much thickened at the nodes; leaves 2 or 3 in a fascicle, erect, elongate-linear, acute or acuminate, closely veined, 1/2–1 ft. long; scapes lateral, erect, 1/2–1 1/4 ft. long, with numerous lanceolate imbricate sheaths; raceme short, usually dense, 1–3 in. long; bracts lanceolate, acuminate, 1/4 to over 1/2 in. long; pedicels about 1/2 in. long; flowers medium-sized, dull brown or red; sepals elliptic-lanceolate or oblong-lanceolate, acute or subacute, about 1/2 in. long; petals elliptic-oblong, subobtuse, about as long as the petals and rather broader; lip as long as the petals, broader than long, subequally 3-lobed; side lobes somewhat diverging, broadly oblong, with rounded apex; front lobe suborbicular or broadly oblong, obtuse or rounded at the apex, with 3–5 prominent strongly crested keels from middle to apex, more slender behind; spur obsolete; column clavate, over 1/4 in. long. null