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Montana Field Guide

Montana Field Guides

Fairy Slipper - Calypso bulbosa var. occidentalis

Native Species

Global Rank: G5T5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
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Diagnostic Characteristics
Sheviak and Catling (2003, Fl. North America, Vol. 26) provide the following characters of variety bulbosa to distinguish it from americana:

Bristles of lip whitish or color of lamina, sparse; lamina commonly with reddish markings on dull white, usually shorter than horns.

Range Comments
AK south to CA and east to the Bitterroot Divide in ID (Kartesz 2009).

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

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

Recency

 

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



Habitat
"Moist to dry, shady coniferous forests; 0-1600 m" (Sheviak and Catling, 2003, Fl. North America, Vol. 26).

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus centralis, Bombus fervidus, Bombus flavifrons, Bombus frigidus, Bombus melanopygus, Bombus mixtus, Bombus rufocinctus, and Bombus occidentalis (Ackerman 1981).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Ackerman, J.D. 1981. Pollination biology of Calypso bulbosa var. occidentalis (Orchidaceae): a food-deception system. MadroƱo 28(3): 101-110.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Fairy Slipper — Calypso bulbosa var. occidentalis.  Montana Field Guide.  .  Retrieved on , from