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Montana Field Guide

Montana Field Guides

Spotted Coralroot - Corallorhiza maculata

Native Species

Global Rank: G5
State Rank: S4
C-value: 5

Agency Status


External Links

General Description
Stems purple, occasionally yellowish, 15–50 cm. Inflorescence with 10 to 30 flowers; bracts 1–5 mm long. Flowers: sepals and upper petals 6–10 mm long, purple (yellowish), somewhat spreading; lip petal 4–9 mm long, white with purple spots and a pair of small lanceolate basal lobes. Capsule 15–22 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

We have varieties maculosa and occidentalis (Lindl.) Ames.

Species Range
Montana Range Range Descriptions


Range Comments
BC to NL south to CA, AZ, NM, IN and SC (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 102

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)


  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
    • Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
    • Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
    • Tuinstra, K. E. 1967. Vegetation of the floodplains and first terraces of Rock Creek near Red Lodge, Montana. Ph.D dissertation. Montana State University, Bozeman 110 pp.
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Citation for data on this website:
Spotted Coralroot — Corallorhiza maculata.  Montana Field Guide.  .  Retrieved on , from