Cypripediums for House and Garden
Information about growing Cypripedium orchids in a temperate climate garden. Clark Riley. Baltimore, Maryland, United States.
Native Orchids of the Pacific NW and Canadian Rockies
A photographic record of the beautiful and often rare native orchids that can be found in the region. Medical Lake, Washington, United States.
An interactive guide, with descriptions and images, to the native orchids of Wisconsin. Jeffrey R. Hapeman. UW-Madison, Wisconsin, United States.
