Flora of North America species comparison

erect, unbranched, sometimes with a few divaricate-ascending branches from proximal 1/2 of stem above base.

± short-decumbent proximally, becoming erect to ascending, much-branched from base.

linear or linear-lanceolate to lanceolate, 1 mm wide at base, not fleshy, apex acuminate.

lanceolate to elliptic to ovate or obovate, distal ones cup-shaped, not fleshy, apex rounded to obtuse.

proximally pale greenish, distally white on lobe apices, often becoming entirely greenish with age;

lobes divaricate-ascending, linear, 8–14 mm, usually arising below mid length.

proximally green or reddish brownish, distally whitish, rarely pinkish or cream, on lobe apices;

lobes ascending, oblong, 12–14 mm, arising above mid length.

14–21 mm;

beak pale, off-white, pale yellow, green with margins off-white, or yellow, sometimes orange, 1–4 mm;

abaxial lip pale yellow;

teeth white to green.

15–22 mm;

beak pink to purple, 4–6 mm;

abaxial lip yellow, becoming pink to red after anthesis;

teeth deep to bright pinkish purple, often with whitish bases.

with all 4 clefts subequal or lateral clefts shallower;

lateral clefts 2–3 mm, 25% of calyx length.

with all 4 clefts subequal;

lateral clefts 5–5.5 mm, 40% of calyx length.