Flora of North America species comparison

(1–)2–3(–4), spreading to ascending, gradually to rather abruptly reduced to bracts distally;

blade lanceolate to elliptic-oblong, 5–35 × 1–7 cm.

1–3, spreading to ascending, abruptly or gradually reduced to bracts distally;

blade linear-lanceolate or lanceolate to lance-oblong, 15–26 × 1–3 cm.

lax to dense.

rather dense.

resupinate, inconspicuous, yellowish green;

lateral sepals porrect to reflexed;

petals oblong-orbiculate to ovate, apex somewhat crenulate;

lip descending to commonly reflexed, 2–6 × 1.8–5 mm, base auriculate, with prominent central tubercle, distal margin entire to slightly crenulate;

spur cylindric to strongly clavate, 4–8(–11) mm, apex rarely 2-lobed;

rostellum lobes mostly parallel to slightly diverging, directed downward, minute, obscure;

pollinia remaining enclosed in anther sacs;

viscidia mostly quadrangular, oblong-quadrangular, orbiculate, or broadly asymmetric, commonly canaliculate to nearly cylindric and difficult to assess;

ovary rather slender to stout, mostly 8–10 × 2 mm.

resupinate, showy, orange to pale dull yellow;

dorsal sepal entire or emarginate;

lateral sepals reflexed;

petals linear to obovate, apically fringed to merely lacerate-dentate;

lip porrect, ovate to ovate-orbiculate, without basal thickening, 5–10 × 4–9 mm, margins deeply filiform-fringed;

spur slenderly cylindric, 8–17 mm;

rostellum lobes directed downward, distally retrorse, digitate;

pollinaria with stalks recurved;

pollinia remaining enclosed in anther sacs;

viscidia orbiculate to suborbiculate;

ovary slender, 10–19 mm.