Fairy Slipper - Calypso bulbosa var. occidentalis
MNPS Threat Rank
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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.
AK south to CA and east to the Bitterroot Divide in ID (Kartesz 2009).
"Moist to dry, shady coniferous forests; 0-1600 m" (Sheviak and Catling, 2003, Fl. North America, Vol. 26).
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.