Flora of North America species comparison

basally swollen above tuberoid, 0.7–4.5 mm diam. distal to leaves;

bracts 3–15.

attenuate toward tuberoid, 0.5–3.5 mm diam.;

bracts (4–)7–20(–26).

prostrate;

blade 6–19 × 1–4.5 cm.

prostrate;

blade 11–17 × 2.2–3.9 cm.

± densely flowered, 3.5–32 cm;

rachis ± length of peduncle;

bracts 3–12 mm.

densely flowered, cylindric, (2–)5–15(–30) cm;

rachis shorter than peduncle;

bracts (3–)5–8(–11) mm.

± white with green or yellow-green midveins, fragrance nocturnal, strong, clovelike;

sepals 2.5–4.5 × 1–2 mm;

dorsal sepal projecting forward between petals, oblong to lanceolate;

lateral sepals reflexed-spreading, obliquely oblong-lanceolate;

petals reflexed-spreading, oblique to falcate, oblong, 2–5 × 1–2 mm;

lip straight to ± deflexed, oblong to ovate-elliptic, 2.2–5.3 × 1–2.5 mm;

spur ± horizontal, straight, 7–12 mm;

viscidia oblong, 0.5–0.7 × 0.2–0.3 mm;

rostellum blunt.

green and white, fragrance faint, harsh to honeylike, diurnal;

sepals 3–5.5 × 1–2.5 mm;

dorsal sepal green with white margins, elliptic-lanceolate;

lateral sepals spreading to recurved, white, lanceolate;

petals erect-recurved, green with broad outer, narrow inner white borders, lanceolate, falcate, 3–5 × 1.5 mm, inner margins often forming U, apices often connivent;

lip recurved, triangular-lanceolate, 2.5–5 × 1.2–2.5 mm;

spur deflexed, 2–5 mm;

viscidia ovate to broadly elliptic, 0.4–0.5 × 0.3–0.4 mm;

rostellum blunt.

4–13 mm.

5–9 mm.

cinnamon brown.

cinnamon brown.

= 42.