Flora of North America species comparison

few, descending, tuberous, mostly to 0.8 cm diam.

few–several, spreading to descending, mostly to 0.75 cm diam., slender to stout.

fugaceous or rarely persisting to anthesis, basal, ascending, linear-lanceolate to oblanceolate, to 16 × 1.5 cm.

, basal, spreading, obovate, 2–5 × 1–2 cm.

usually very tightly spiraled, 3–4 flowers per cycle of spiral;

rachis moderately pubescent, some trichomes capitate, glands obviously stalked (longest trichomes 0.2–0.52 mm).

secund to tightly spiraled, 8–10 flowers per cycle of spiral;

rachis glabrous to sparsely pubescent, trichomes capitate to clavate, glands obviously stalked.

abruptly nodding from base, white to ivory, gaping, lip not strongly curving from claw, not urceolate;

sepals distinct to base, 5–14 mm;

lateral sepals wide-spreading, commonly ascending above flower;

petals linear to lance-oblong, 4.9–13 mm, apex acute to obtuse;

lip commonly yellow centrally, ovate to oblong, 4.9–12 × 3.3–7 mm, margins crenulate, glabrous;

veins several, branches parallel;

basal calli short-conic, mostly to 1 mm;

viscidia linear-lanceolate;

ovary 4–10 mm.

white;

sepals somewhat spreading, distinct to base, elliptic, 5 × 1 mm;

lateral sepals white throughout, apex acuminate;

petals lanceolate, slightly oblique, 5 × 1 mm;

lip white with green or yellowish green center, ovate to oblong, 5 × 2.5 mm, apex dilated, its margin crisped-crenate, pubescent;

veins obscure;

basal calli erect, short-pointed, mostly to 1 mm;

viscidium linear-lanceolate;

ovary mostly 3 mm.

monoembryonic.

monoembryonic.

= 30.