How Much Do You Know About the Ram's Head Lady's Slipper Orchid? Species at Risk Series – CPAWS OV
Capital Garden Rams Head | AuthenTEAK
Protecting Biodiversity in the Climate Crisis: Propagation of the Endangered Ram's Head Lady Slipper Orchid | K.C. Irving Environmental Science Centre and Harriet Irving Botanical Gardens
Cypripedium arietinum (Ram's head lady's slipper) | Native Plants of North America