Flora of North America species comparison

5–10, along length of stem, alternate, ascending to spreading;

blade elliptic-lanceolate to broadly elliptic, 5–16 × 1.5–6.5 cm.

3–9, along length of stem, alternate, ascending to spreading;

blade broadly elliptic to ovate or elliptic-lanceolate, 10–27 × 5–16 cm.

3–18(–22);

sepals yellow-green to pale brownish yellow;

dorsal sepal elliptic, 14–20 × 7–13 mm;

lateral sepals connate almost to apex;

synsepal 12–20 × 10–12 mm;

petals spreading, same color as sepals or more yellowish, linear-oblong to linear-lanceolate, flat, 14–16 × 3–5 mm;

lip white, sometimes pinkish, obovoid, 15–20 mm;

orifice basal, 11–14 mm;

staminode suborbicular-subauriform.

1–3(–4);

sepals white;

dorsal sepal suborbiculate to ovate-orbiculate, 25–45 × 18–42 mm;

lateral sepals connate, synsepal 24–42 × 15–37 mm;

petals spreading, same color as sepals, oblong to elliptic or ovate-lanceolate, flat, 25–47 × 6–17 mm;

lip white, usually suffused around orifice and variably beyond with pale pink to crimson magenta, subglobose-obovoid, 25–53 mm;

orifice basal, 18–28 mm;

staminode cordiform-ovoid to ovoid-lanceoloid.

= 20.