Corallorhiza maculata (Raf.) Raf. 1817 Photo courtesy of Eric Hunt.
Another Plant Photo courtesy of Scott McGregor

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Common Name Spottted Coral-Root
Flower Size 1/2" [1.25 cm]
Found from Canada south to Guatemala as a medium to large sized, cool to cold growing, mycoheterotrophic, leafless terrestrial, blooming on an erect, 6 to 30" [15 to 75 cm] long, racemose, many [to 50] flowered, reddish inflorescence arising out of the ground occuring mostly in the summer through fall and is found in moist shady woods on rocky slopes in rich decaying humus and rotten leaves up to elevations of 3700 meters. It's common name is the Spotted Coral-root.
Synonyms *Cladorhiza maculata Raf. 1817; Corallorhiza grabhamii Cockerell 1903; Corallorhiza leimbachiana Suksd. 1906; Corallorhiza maculata Greene 1906; Corallorhiza maculata f. aurea P.M.Br. 1995; Corallorhiza maculata f flavida (M.Peck) Farwell 1927; Corallorhiza maculata f. immaculata (M.Peck) J.T.Howell 1970; Corallorhiza maculata f. intermedia (Farw.) Farw. 1927; Corallorhiza maculata f. punicea (Bartlett) Weath. & J.Adams 1945; Corallorhiza maculata f. rubra P.M.Br. 1995; Corallorhiza maculata var. flavida (M.Peck) Cockerell 1916; Corallorhiza maculata var. immaculata M.Peck 1950; Corallorhiza maculata var. intermedia Farw. 1917; Corallorhiza maculata var. mexicana (Lindl.) Freudenst. 1997; Corallorhiza maculata var. occidentalis (Lindl.) Ames 1924; Corallorhiza maculata var. ozettensis Tischer 2001; Corallorhiza maculata var. punicea Bartlett 1922; Corallorhiza mexicana Lindley 1840; Corallorhiza multiflora Nutt. 1823; Corallorhiza multiflora var. flavida M.Peck 1897; Corallorhiza multiflora var. occidentalis Lindl. 1840 ; Neottia mexicana (Lindl.) Kuntze 1891; Neottia multiflora (Nutt.) Kuntze 1891
References W3 Tropicos, Kew Monocot list , IPNI ; AOS Bulletin Vol 29 No 5 1960; AOS Bulletin Vol 30 No 5 1961 photo; Encyclopedia of Cultivated Orchids Hawkes 1965; AOS Bulletin Vol 48 No 11 1979 photo; Orchid Digest Vol 46 No 6 1982 photo fide; Flora Novo-Galaciana Vol 16 McVaugh 1985; Schlechteriana Vol 4 No 4 1993; AOS Bulletin Vol 63 No 5 1994 photo; AOS Bulletin Vol 77 No 10 2008 photo
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Corallorhiza maculata (Rafinesque) Rafinesque var. occidentalis (Lindley) Ames forma immaculata (Peck) Howell
Common Name Western Spottted Coral-Root
A variety of the previous species.
Synonyms Corallorrhiza grabhamii Cockerell 1903; Corallorrhiza leimbachiana Suksd. 1906; Corallorhiza maculata f. immaculata (M.Peck) J.T.Howell 1970; Corallorhiza maculata f. intermedia (Farw.) Farw. 1927; Corallorhiza maculata f. punicea (Bartlett) Weath. & J.Adams 1945;
~Corallorhiza maculata var. immaculata M.Peck 1950; Corallorhiza maculata var. intermedia Farw. 1917; Corallorhiza maculata var. punicea Bartlett 1922; Corallorrhiza multiflora var. occidentalis Lindl. 1840;
References W3 Tropicos, Kew Monocot list , IPNI ; Schlechteriana Vol 4 No 4 1993;