Plants 24–38 cm. Leaves few, scattered along stem, sometimes restricted to proximal portion, wide-spreading, gradually to abruptly reduced distally; bracts 1 or absent; blade oblanceolate, narrowly elliptic, oblong, or ovate-elliptic, 7–17 × 1.8–3.5 cm. Spikes rather lax. Flowers resupinate, not showy, green to yellowish green; lateral sepals reflexed to somewhat spreading; petals ovate-falcate, margins entire; lip descending or reflexed, linear-lanceolate to linear-lance-elliptic, 5–12 × 1–3 mm, margins entire, midline scarcely (perhaps variably) thickened toward base; spur slenderly cylindric, 12–17 mm; rostellum lobes divergent, directed forward, rounded-subangular, rather prominent; pollinaria straight; pollinia remaining enclosed in anther sacs; viscidia orbiculate to suborbiculate; ovary rather slender to stout, 9–16 mm.
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