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.

1, at middle or proximal 1/3 of stem, sheathing leaf bases persistent, shredding;

blade ovate-elliptic or oblanceolate, keeled abaxially, 2.4–15 × 1–5.2(–6) 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.

spicate racemes, rachis thick, slightly ridged or fluted, 6–22 cm;

floral bracts triangular to lanceolate, 0.5–1 mm;

pedicels 1.3–1.7 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.

40–160, not resupinate, green to yellowish green;

dorsal sepal ovate to elliptic, 1.5–2.8 × 0.8–1.3 mm, apex acuminate;

lateral sepals ovate to elliptic, falcate, 1.5–2.8 × 0.8–1.3 mm, apex acuminate;

petals strongly reflexed, filiform to linear, falcate, 1.3–2 × 0.2–0.3 mm, apex acuminate;

lip suborbiculate-ovate to subquadrangular-ovate, 1.5–2.8 × 1.3–2.2(–2.5) mm, base hastate-auriculate, apex obliquely 3-dentate or retuse with apiculum in sinus;

disc deeply concave, 5-veined;

column 0.2–0.5 × 0.2–0.5 mm;

pollinia yellow.

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

ascending, ellipsoid, 7 × 3 mm.

5–20 mm diam.

5–15 mm diam.