Flora of North America species comparison

few–several, spreading to descending, tuberous, mostly to 1 cm diam.

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

persisting through anthesis or fugaceous, basal, often on proximal portion of stem, ascending, linear to linear-lanceolate, linear-oblanceolate, oblanceolate or elliptic, to 34 × 3.5 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, 5–9 flowers per cycle of spiral, sometimes nearly secund;

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

usually very tightly spiraled, rarely loosely spiraled, usually 3 flowers per cycle of spiral;

rachis glabrous to sparsely pubescent, trichomes less (usually much less) than 0.18 mm, capitate glands often sessile.

ascending, creamy to markedly yellowish, slenderly tubular;

sepals connate at base, 4.6–11 mm, apex reflexed-spreading;

petals linear-lanceolate to linear-oblanceolate, apex reflexed-spreading, obtuse to subacute or subemarginate;

lip lance-ovate to lanceolate, 4–9.5 × 1.9–4.3 mm, apex recurved less than to scarcely more than apices of sepals and petals, only slightly or not at all dilated, with subapical dense cushion of peg-shaped trichomes on adaxial surface;

veins few to several, branches wide-spreading or often parallel;

viscidia linear to linear-elliptic;

ovary mostly 2–7.5 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.

= 44 [66].