Flora of North America species comparison

2(–3,very rarely), on middle half of stem, alternate to subopposite, wide-spreading;

blade lance-ovate to ovate-suborbiculate, 5–15 × 1.5–8 cm.

solitary, erect;

sepals white with pink to reddish or magenta markings;

dorsal sepal ovate- to suborbiculate-elliptic, 12–28 × 6–19 mm;

lateral sepals connate, synsepal 12–21 × 3–8 mm;

petals spreading, same color as sepals, lanceolate-subpandurate (constricted near apex), flat, 10–20 × 4–9 mm, slightly shorter than to equaling lip, margins undulate-revolute to slightly spiraled;

lip similarly colored, subglobose to obovoid, 15–30 mm;

orifice basal, 10–24 mm;

staminode oblong-quadrangular to broadly ellipsoid or ovoid.

= 20, 20.