Flora of North America species comparison

numerous, spreading, mostly to 1 cm diam., stout.

persisting through anthesis, to 4–5, basal, reduced to sheathing bracts upward on stem, spreading, linear-lanceolate, keeled, 5–25 × 1 cm.

spikes loosely to tightly spiraled, 3–7 or more flowers per cycle of spiral, sometimes nearly secund;

rachis densely pubescent, trichomes articulate, pointed, capitate glands absent.

nodding to somewhat ascending, white to cream, mostly gaping;

sepals distinct to base, lanceolate, 6–10 × 2–3 mm;

lateral sepals spreading;

petals oblong, 6–9 × 2 mm, apex obtuse;

lip creamy yellow centrally or some individuals with 2 brown-orange spots, ovate, 5–8 × 4 mm;

veins of lip straight, branches parallel;

basal calli conic, to 1 mm;

viscidium linear-lanceolate;

ovary mostly 8 mm.

monoembryonic.

= 30.