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European lady's slipper
Cypripedium calceolus
European lady's slipper Orchid Family
Cypripedium calceolus Orchidaceae
common name
  European lady's slipper
accepted scientific name
  Cypripedium calceolus L.
rules for finding collection records
  Cypripedium calceolus (428)
  exclude Cypripedium calceolus parviflorum
  exclude Cypripedium calceolus parviflorum
  exclude Cypripedium calceolus planipetalum
  exclude Cypripedium calceolus pubescens
family name
Image Author: ©2006 Louis-M. Landry
Image License: Author's permission
Image Source
Category: Wildflowers
Flowers: Six petals, Irregularly shaped flowers
Petal colors: color
Flower size is 2.0 to 3.5 inches
Leaf: Alternate
Plant Observed 3rd week of April thru 2nd week of September

How Likely at this Location (14%)
Name Match (100%)
Plant Showiness (81%)
This species is not found in North America. However, native species are sometimes classified as a subspecies of this European species.
base map where plant found
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