Corallorhiza odontorhiza

(Willdenow) Poiret

in F. Cuvier, Dict. Sci. Nat. ed. 2, 10: 375. 1818.

Common names: Fall coral-root small-flowered coral-root corallorhize d’automne
Basionym: Cymbidium odontorhizon Willdenow Sp. Pl. 4(1): 110. 1805
Synonyms: Corallorhiza micrantha Chapman Corallorhiza pringlei Greenman
Treatment appears in FNA Volume 26. Treatment on page 635. Mentioned on page 633, 636.
Revision as of 22:14, 27 May 2020 by imported>Volume Importer

Stems yellow, greenish, or purplish brown, base strongly thickened, bulbous. Inflorescences: racemes lax, 11–46 × 1–2.5 cm. Flowers 5–26, inconspicuous; perianth open or closed; sepals and petals reddish purple to brown, often suffused with green, broadly lanceolate, 1–2-veined; lateral sepals strongly curved upward and directed forward, 3–4.5 mm; petals 2.5–3.8 mm, connivent with dorsal sepal to form hood over column, or sepals and petals connivent to produce closed flower; lip white, often spotted with purple, ovate to orbiculate-quadrangular, unlobed, 2.7–4.6 ×1.8–3.7 mm, thin, with 2 distinct basal lamellae, margins entire to erose-fringed; column white basally, often purple apically, 1.9–2.5 mm, straight or curved toward lip, with 2 distinct auricles in open-flowered plants; ovary 2.5–5 mm; mentum inconspicuous. Capsules broadly ellipsoid, 5.5–8 × 3.5–5 mm.

Distribution

V26 1302-distribution-map.jpg

North America, Mexico, Central America.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Perianth tending to be closed, column without or with only poorly developed auricles at base on adaxial surface; stigmatic surface 0.3–0.5 mm wide; lip 1.7–2.2(–3) mm wide. Corallorhiza odontorhiza var. odontorhiza
1 Perianth open, column with 2 prominent auricles at base on adaxial surface; stigmatic surface 0.7–1 mm wide; lip 2–3.7 mm wide. Corallorhiza odontorhiza var. pringlei
... more about "Corallorhiza odontorhiza"
Lawrence K. Magrath +  and John V. Freudenstein +
(Willdenow) Poiret +
Cymbidium odontorhizon +
Fall coral-root +, small-flowered coral-root +  and corallorhize d’automne +
North America +, Mexico +  and Central America. +
in F. Cuvier, Dict. Sci. Nat. ed. +
Corallorhiza micrantha +  and Corallorhiza pringlei +
Corallorhiza odontorhiza +
Corallorhiza +
species +