Flora of North America species comparison

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

blade oblong to linear-lanceolate, 5–30 × 0.6–7 cm.

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

blade linear, linear-lanceolate, oblong, or oblanceolate, 3.5–32 × 0.3–7 cm.

very lax to very dense.

very lax to very dense.

resupinate, not showy but sometimes conspicuous, whitish green;

corolla often whiter than calyx;

lateral sepals spreading to slightly reflexed;

petals ovate- to lance-falcate, margins entire;

lip descending or apex adhering to dorsal sepal and petal apices, lanceolate to nearly linear, without basal thickening, 5–12 × 2–4 mm, base slightly to rather markedly rounded-dilated, margins entire;

spur slenderly cylindric to clavate, 4–12 mm, apex usually slenderly tapered;

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

pollinaria straight;

pollinia remaining enclosed in anther sacs;

viscidia oblong;

ovary rather slender to stout, mostly 6–15 mm.

resupinate, rather showy, conspicuous, white;

lateral sepals spreading to reflexed;

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

lip descending or apex adhering to dorsal sepal and petal apices, linear-lanceolate to lanceolate, without basal thickening, 4–11 × 2–5 mm, base slightly rounded-dilated to orbiculate, rarely rhombic, margins entire;

rostellum lobes parallel to slightly divergent, directed downward, very small, obscure, rounded;

pollinaria straight;

pollinia remaining enclosed in anther sacs;

ovary rather slender to stout, 5–15 mm.

= 84.

= 42.