Flora of North America species comparison

1–4, wide-spreading to ascending, scattered along stem, gradually to abruptly reduced to bracts distally;

blade linear-lanceolate, linear-oblong, or oblong-obovate, 7–23 × 0.7–5 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 dense.

lax.

resupinate, not showy to inconspicuous, whitish green or yellowish green, lip often paler;

lateral sepals reflexed;

petals linear to narrowly oblong-spatulate, margins entire or apex rarely slightly lacerate;

lip descending, without basal thickening, deeply 3-lobed, 10–17 × 13–17 mm, lobes extensively and deeply divided, commonly into filiform divisions, margins rarely merely fringed or middle lobe merely lacerate-fringed, lateral lobes narrowly to broadly cuneate, middle lobe cuneate-flabellate, usually narrow;

spur slenderly to markedly clavate, 11–23 mm;

rostellum lobes nearly parallel, directed downward, short, rounded;

pollinaria nearly straight;

pollinia remaining enclosed in anther sacs;

viscidia linear;

ovary slender to stout, mostly 8–20 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.