Flora of North America species comparison

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

few–several, descending, slender to somewhat tuberously thickened, mostly to 0.5 cm diam.

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

persisting through anthesis, basal and on proximal portion of stem, ascending to spreading, ovate-lanceolate to linear-lanceolate to oblanceolate, to 20 × 2 cm.

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

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

loosely spiraled, usually 5 or more flowers per cycle of spiral;

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

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.

ivory to yellowish white or greenish cream, strongly nodding, curved downward throughout lengths, scarcely gaping, urceolate-tubular;

sepals distinct to base, 5.2–8 mm;

lateral sepals slightly spreading, apex straight;

petals creamy white to greenish white, ovate-elliptic to obovate, 3.9–7.6 mm, apex obtuse;

lip often darker centrally, 4.1–8 × 3.2–5.1 mm, glabrous;

veins several, branches parallel;

basal calli incurved, prominent, 0.7–1.1 mm;

viscidia linear to linear-lanceolate;

ovary 4–7 mm.

monoembryonic.

partly or wholly polyembryonic.

= 44.