Flora of North America species comparison

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

spreading to descending, slender, mostly to 0.6 cm diam.

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 and long after anthesis, 3–4, basal, ascending-spreading, elliptic-lanceolate, 3–12 × 0.5–1.5 cm.

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.

rather openly spiraled, 3–4 flowers per cycle of spiral;

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

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.

nearly horizontal to abruptly nodding from base, white, tubular;

sepals linear-oblong;

dorsal sepal connate at base, 4.5–5.5 mm;

lateral sepals appressed to petals and lip, straight, 5–6 mm × 1–2 mm;

petals linear-oblong, 5–6 × 2–4 mm, apex obtuse;

lip brilliant yellow or yellow-orange, centrally greenish yellow, oblong, 5–6 × 2–4 mm, margins crenulate, veins several, greenish, branches few, very short, mostly widely diverging, sometimes forming reticulum with primary veins;

basal calli spreading, 1 mm;

viscidium oval;

ovary 3–8 mm.

monoembryonic.

monoembryonic.

= 44 [66].

= 44.