Fairy Slipper - Calypso bulbosa var. americana
MNPS Threat Rank
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Sheviak and Catling (2003, Fl. North America, Vol. 26) provide the following characters of variety americana to distinguish it from bulbosa:
Bristles of lip yellow, extensive; lamina white or suffused with pink, usually equaling or longer than horns.
Much of northern North America, running down the Rocky Mountains to Lincoln County (NM), and east to ME (Kartesz 2009).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
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
- Literature Cited AboveLegend: View Online Publication
- Ackerman, J.D. 1981. Pollination biology of Calypso bulbosa var. occidentalis (Orchidaceae): a food-deception system. Madroño 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.