Flora of North America species comparison

few–several, abruptly diverging or sometimes ascending, scattered along stem;

blade oblong to ovate or rarely linear-lanceolate, 3–32 × (0.6–)1–4.5 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 dense.

very lax to very dense.

resupinate, not showy, green to yellowish green;

lateral sepals spreading to reflexed;

petals ovate- to lance-falcate, margins entire;

lip descending to somewhat reflexed or projecting, linear to lanceolate, without basal thickening, 3–9 × less than 1–3 mm;

spur strongly clavate, capitate-inflated, or scrotiform, 2–6 mm, apex obtuse;

rostellum lobes approximately parallel to convergent, directed downward, very small, rounded, obscure;

pollinaria straight;

pollinia remaining enclosed in anther sacs;

viscidia orbiculate;

ovary rather slender to stout, mostly 5–10 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.

= 42.

= 42.