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Common name:
Lady's-slipper orchid
Scientific name: Cypripedium acaule
Common name: Lady's-slipper orchid
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 550.
The copyright of this image has expired. This applies to those countries with a copyright term of life of the author plus 70 years (United States, Canada, the European Union etc.). Permission is granted to copy, distribute and/or modify this line-drawing for any purpose.
Common name: Lady's-slipper orchid
Robert H. Mohlenbrock USDA-NRCS PLANTS Database / USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. - Not copyrighted image
Common name: Lady's-slipper orchid
USDA-NRCS PLANTS Database / USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. - Not copyrighted image
Common name: Lady's-slipper orchid
R. Dale Sanders - USDA-NRCS PLANTS Database - Not copyrighted image
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