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tall ladies'-tresses

Habit Herbs to 75 cm.
Roots

fusiform-cylindric, 13 cm × 3–10 mm.

Leaves

2–6;

petiole erect, 3–10 cm;

blade green abaxially and adaxially, narrowly to broadly elliptic, or elliptic-lanceolate, 3.7–13 × 1.6–6.4 cm, apex obtuse to acute-acuminate.

Inflorescences

immaculate, green to greenish brown;

scape to 57 cm × 1–5 mm, glabrous or sparsely pubescent;

racemes 7–50-flowered, 7–23 cm, pubescent;

floral bracts erect, immaculate or minutely speckled, lanceolate, 8–19 mm.

Flowers

green to coppery brown, sometimes purplish, tubular-funnelform;

sepals basally connate for 0.1 mm, abaxially pubescent;

dorsal sepal elliptic-lanceolate, 4.5–7 × 1.5–2 mm, apex acuminate;

lateral sepals slightly sinuate-falcate, narrowly oblong, 5–7.5 × 1–2 mm;

petals linear to narrowly spatulate, 4–6.5 × 0.5–0.75 mm, glabrous;

lip white, canaliculate, pandurate to oblong-ovate, then constricted distal to middle, distal portion flabellate to reniform, usually broadest, or distal and proximal portions equal in width, 5–7 × 2–4 mm, base laterally thickened, with or without pair of tubercles, margins entire or crenulate;

column slender, 3.5–4.5 mm;

pollinia yellow.

Capsules

erect-spreading, ellipsoid, 6–12 × 4–6 mm.

2n

= 28, 30, 45.

Cyclopogon elatus

Phenology Flowering Feb–Mar.
Habitat In humus of moist, rocky hammocks
Elevation 0–20 m (0–100 ft)
Distribution
from FNA
FL; Mexico; Central America; West Indies; n South America
[BONAP county map]
Discussion

Morphologic variation is substantial in Cyclopogon elatus. Variants may be sympatric and locally distinct (J. D. Ackerman 1995), or they may form a continuous series within or among regions. I suspect that inbreeding (via self-pollination) is prevalent and has generated and maintained local variation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 26, p. 522.
Parent taxa Orchidaceae > subfam. Orchidoideae > tribe Cranichideae > subtribe Spiranthinae > Cyclopogon
Sibling taxa
C. cranichoides
Synonyms Satyrium elatum, Beadlea elata, Sauroglossum richardii, Spiranthes elata
Name authority (Swartz) Schlechter: Repert. Spec. Nov. Regni Veg. Beih. 8: 53. (1919)
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