Flora of North America species comparison

basal, 3–5 mm diam.

basal or from proximal branches, 2–3 mm diam.

unbranched, straight, terete, 2–5 cm.

branched, sinuous, terete, main stem to 160 cm, leaves 100–120 mm × 12–22 mm;

vegetative branches to 60 cm, leaves 58–110 × 10–20 mm; flowering branchlets 3–8 cm, leaves 20–60 × 9–13 mm, flowering branchlets produced from both main stem and vegetative branches.

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.

many, distributed throughout stems;

petiole to 4 cm;

blade narrowly lanceolate, 2-lobed, fleshy-leathery.

erect, racemose, 3–26 cm;

peduncle 2–10 cm;

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

distichous-imbricate;

peduncle 1 cm;

bracts 2–3, conduplicate, 8–18 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.

1–3, not resupinate, simultaneous, brownish green;

sepals spreading, lanceolate, abaxially keeled, many veined, 12–21 × 3–6 mm, apex acute;

petals partly open, elliptic, many veined, 12–18 × 2.5–5 mm, apex obtuse to rounded;

lip cordate, callus V-shaped, prolonged into central keel, 9–14 × 5–9 mm;

column suffused with purple, 5 mm;

clinandrium erose, short;

anther obovate, 2-cleft;

ovary 15–20 mm.

ellipsoid;

pedicel 7–11 mm;

body 14–23;

beak 5 mm.

ovoid, body 18–24 × 10–12 mm, tapered beak 5–6 mm.