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FNA | Family List | FNA Vol. 26 | Orchidaceae | Calopogon

1. Calopogon multiflorus Lindley, Gen. Sp. Orchid. Pl. 425. 1840.

Many-flowered grass-pink

Calopogon barbatus (Walter) Ames var. multiflorus (Lindley) Correll; Helleborine multiflora (Lindley) Kuntze; Limodorum multiflorum (Lindley) C. Mohr; L. pinetorum Small

Plants 17–33(–50) cm. Corms elongate, forked, 18–40 mm. Leaves: blade linear, 3–15 cm × 3–9 mm at flowering, later elongating to 6–41 cm. Inflorescences dark purple, becoming green after flowering, 17–33(–50) cm; floral bracts ovate, ovate-lanceolate, or subulate, 3–8 mm. Flowers 2–15, opening nearly simultaneously, crimson, magenta, to rarely light pink, strongly fragrant to pungent; dorsal sepal obovate to oblanceolate, 9–17 × 5–8 mm, apex acuminate; lateral sepals reflexed only at tip or straight, ovate to lanceolate, slightly falcate to straight, 10–13.5 × 6–9 mm; petals pandurate, rarely obovate, 8–14 × 4–8 mm, apex obtuse; lip 7–12 mm, middle lobe with dilated apex triangular, rounded to truncate, 7–13 mm wide; column 5.5–7.5 × 1–2 mm, distal end 5–7 mm wide; rostellum present. Capsules ellipsoid to obconic, 13–22 × 4–7 mm. 2n = 40, 42.

Flowering Mar--Apr, rarely Nov--Aug (s Fla. only), usually several weeks following fires. Sandy, relatively dry pine savannas and grasslands; 0--60 m; Ala., Fla., Ga., La., Miss., N.C., S.C.

Calopogon multiflorus is nearly extirpated outside of central Florida.

Distinctive features of Calopogon multiflorus are the purple rachis, forked corm, strong floral fragrance, pandurate petals, and a lip usually as wide or wider than long. Although previously considered to be a variety of Calopogon barbatus (D. S. Correll 1940), C. multiflorus is readily distinguished from that species and all other Calopogon species by its features. The biology of C. multiflorus has been discussed in detail by D. H. Goldman and S. L. Orzell (2000).


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