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Cypripedium fasciculatum (Clustered lady's slipper)
Cressler, Alan

Cypripedium fasciculatum

Cypripedium fasciculatum Kellogg ex S. Watson

Clustered Lady's Slipper

Orchidaceae (Orchid Family)



USDA Native Status: L48 (N)

Several short stems in a cluster, each stem with 2 broad leaves and 2-4 drooping, brownish to greenish, bilaterally symmetrical flowers.

Each ladys slipper species attracts insects into its pouch, from which there is only one exit, past the stigma, where pollen from a previously visited flower is brushed off. Then the insect must go under one of the anthers, where new pollen is picked up. This procedure helps maintain genetic diversity, thus increasing the ability of the species to adapt to its environment.


From the Image Gallery

8 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Simple

Bloom Information

Bloom Time: Apr , May , Jun , Jul


USA: CA , CO , ID , MT , OR , UT , WA , WY
Native Distribution: British Columbia south to central California and northern Colorado.
Native Habitat: Moderately high-elevation forests.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Cypripedium fasciculatum in USDA Plants
FNA: Find Cypripedium fasciculatum in the Flora of North America (if available)
Google: Search Google for Cypripedium fasciculatum


Record Modified: 2015-06-15
Research By: TWC Staff

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