Flora of North America species comparison

few–several, ascending to arcuate-spreading, scattered along stem, gradually reduced to bracts distally;

blade oblong to linear-lanceolate, 2.7–23 × 0.4–4 cm.

2, in subequal basal pair, spreading-ascending or lying on ground;

bracts 0(–1, very rarely);

blade orbiculate, broadly elliptic, or obovate, 5–17 × 4–13 cm.

lax to very dense.

lax.

resupinate, not showy, yellowish green with dull yellowish lip, or more whitish green under cool conditions;

lateral sepals spreading to reflexed;

petals rhombic-ovate- to lance-falcate, margins entire;

lip descending, projecting, or apex adhering to dorsal sepal and petal apices, rhombic-lanceolate to lanceolate, without basal thickening, 2.5–6 × 1–1.5 mm, base not rounded-dilated, margins entire;

spur clavate or sometimes rather cylindric, 2–5 mm, apex usually broadly obtuse;

rostellum lobes divergent, directed downward, very small, rounded, obscure;

pollinaria straight;

pollinia rotating forward and/or fragmenting, loose pollen masses free of anther sacs and trailing downward onto stigma;

viscidia orbiculate;

ovary rather slender to stout, mostly 5–13 mm.

resupinate, not showy;

calyx green;

corolla commonly yellowish green;

lateral sepals reflexed;

petals narrowly lanceolate-falcate, margins entire;

lip projecting to porrect, lanceolate to narrowly lance-rhombic, without basal thickening, 8–23 × 1–6 mm, margins entire;

spur slenderly conic, 11–27 mm;

rostellum lobes very wide-spreading, angular;

pollinaria nearly straight;

pollinia remaining enclosed in anther sacs;

viscidia suborbiculate;

ovary slender to rather stout, mostly 8–20 mm.

= 42.

= 42.