Flora of North America species comparison

basal, 3–5 mm diam.

basal, 1–2 mm diam.

unbranched, straight, terete, 2–5 cm.

unbranched, sinuous, terete, 5–23 cm.

2–3, near apex of stem;

petiole to 1.5 cm;

blade narrowly elliptic, 1–9.5 × 0.4–1.3 cm, nearly leathery, apex acute.

throughout length of stem;

petiole to 25 mm;

blade narrowly elliptic, 2-lobed, 2–6.7 × 0.7–2.3 cm, leathery-succulent.

erect, racemose, 3–26 cm;

peduncle 2–10 cm;

bracts triangular, to 1/2 length of ovary, 12–18 mm, apex acuminate.

nearly corymbose;

peduncle less than 1 cm;

floral bracts triangular-ovate, to 12 mm.

6–14, spread along apical 1/2 of inflorescence, resupinate, simultaneous, pale green to bronze-colored;

sepals wide open, narrowly obovate, 5-veined, 6–11 × 2–3 mm, margins revolute, apex obtuse;

petals narrowly oblanceolate, 1-veined, 6–11 × 1–2 mm, apex rounded;

lip base cordate, 3-lobed, middle lobe triangular, apex rounded to slightly notched, 2-callose, with low midrib, 4–6 × 5–7 mm, lateral lobes semiorbiculate;

column 11–12 mm;

clinandrium hood erose, covering anther;

anther ovate, with low keel along front;

ovary 12–18 mm.

4–14, resupinate, simultaneous, green;

sepals wide open, narrowly obovate-elliptic, 5-veined, 12–15 × 3–5 mm, nearly leathery, apex acute to rounded;

petals linear-oblanceolate, 3-veined, 11–12 × 2–2.5 mm, membranaceous, apex acute;

lip widely cordate, 5–9 × 9–18.5 mm, usually with pair of shallow sinuses in front, fleshy-thickened toward center, apex somewhat notched, 2-callose;

column 7–8.5 mm;

clinandrium entire, erose, covering anther;

anther transversely reniform, with prominent beak in front;

ovary 22–28 mm.

ellipsoid;

pedicel 7–11 mm;

body 14–23;

beak 5 mm.

nearly globose;

pedicel 20 mm;

body 16–20 × 10–13 mm.