Flora of North America species comparison

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

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

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

persisting through anthesis, to 5, basal, reduced to sheathing bracts upward on stem, spreading, linear-lanceolate, keeled, 5–40 × 1.7 cm, rigid.

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.

spikes loosely to tightly spiraled, 5–9 flowers per cycle of spiral, sometimes nearly secund;

rachis moderately to densely pubescent, some trichomes capitate, glands obviously stalked.

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.

mostly ascending, white to cream, slenderly tubular, gaping toward apex;

sepals distinct to base, lanceolate, tapering in distal 1/3, 6–10 × 2–3 mm;

lateral sepals spreading;

petals linear, falcate, 7–9 × 2 mm, apex apiculate or sometimes crenulate;

lip yellow centrally, ovate, 6–9 × 4 mm, apical margin laciniate-dentate, crisped;

basal calli incurved, long-tapered, to 1 mm;

viscidium linear-lanceolate;

ovary mostly 5 mm. Seeds monoembryonic.

monoembryonic.

= 30.