Flora of North America species comparison

1(–2, rarely), near middle of stem;

blade bright green, glossy, narrowly to broadly ovate, keeled abaxially, 1.6–10 × 0.5–5 cm, apex acute.

racemes, appearing umbellate before elongation of rachis, 1–13 cm;

floral bracts triangular, 0.16–1.4 mm;

pedicels (3.8–)5–10(–13) mm.

10–160, resupinate, green;

dorsal sepal oblong-elliptic, 1.1–1.9(–2.2) × 0.5–1 mm, apex acuminate;

lateral sepals oblong-elliptic, 1.1–1.9(–2.2) × 0.5–1 mm, apex acuminate;

petals strongly recurved, linear to filiform, slightly falcate, 0.8–1.7(–3) × 0.1–0.2(–0.3) mm;

lip rhombic-deltate to cordate-ovate or oblong-elliptic, 1.1–2.3 × 1–2.2 mm, base cordate or auriculate, auricles less than 0.6 times as long as distance from base of lip to apex of middle lobe, apex 3-dentate;

column 0.4–0.6 × 0.4–0.6 mm;

pollinia yellow.

spreading to slightly drooping, subglobose to ellipsoid, 8 × 4 mm.

5–20 mm diam.