Corallorhiza maculata (Raf.) Raf.
spotted coralroot (summer coralroot)
Orchidaceae (Orchid family)

Introduction to Vascular Plants


© Ian Gardiner     (Photo ID #27153)


E-Flora BC Static Map

Distribution of Corallorhiza maculata
Click here to view the full interactive map and legend

Species Information

Perennial, saprophytic herb from coral-like rhizomes; stems (15) 20-55 cm tall, red to yellow-brown, smooth.
Bractlike and sheathing.
Inflorescence a terminal raceme of 10 to 40 short-stalked, erect to spreading and ultimately bent back flowers, the bracts scalelike; sepals usually the same colour as stem, oblong to lanceolate, 5.5-10 mm long, the lower spreading; lateral petals deep pink to red, sometimes dark-spotted; lip 5-7 mm long, white, red- to purple-spotted, base with 2 lateral lobes, larger terminal lobe irregularly fine-toothed; spur less than 2.5 mm long; column 3-5 mm long, curved over lip, yellowish, purple-spotted.
Capsules, egg-shaped, drooping, 15-20 mm long.

SourceThe Illustrated Flora of British Columbia


Ecological Framework for Corallorhiza maculata

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres)
682 0 1850
Slope Gradient (%)
24 0 150

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

206 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 0 7
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

All BEC Zones (# of stations/zone) species was recorded in

BWBS(29), CDF(15), CWH(254), ESSF(3), ICH(221), IDF(44), MH(2), MS(13), PP(3), SBPS(12), SBS(68)

Habitat and Range

Moist to dry forests in the lowland, steppe and montane zones; frequent throughout BC, especially along the coast, south of 55 degrees N, rare northward; E to NF and S to ME, MA, PA, SC, TN, IA, TX, NM, AZ and CA; Guatemala.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Corallorhiza maculata subsp. maculata
Corallorhiza maculata subsp. mertensiana (Bong.) Calder & Roy L. Taylor
Corallorrhiza maculata (Raf.) Raf. [orthographic variant]
Corallorrhiza maculata subsp. mertensiana (Bong.) Calder & Roy L. Taylor, orth. var.
Corallorrhiza mertensiana