Flora of North America species comparison

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

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

usually absent at anthesis.

loosely to very tightly spiraled, sometimes secund, flowers approximate, mostly without distinct space between proximal flowers (ratio of spike length/flower number less than 2.3), glabrous.

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

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

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.

lip 4–7.5 mm, rounded at apex;

central portion green with clearly defined, broad crisp white apron.

monoembryonic.

= 30.