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NAOCC is a coalition of organizations dedicated to conserving the diverse orchid heritage of the U.S. and Canada. Founded by the Smithsonian Institution and the United States Botanic Garden. Based at the Smithsonian Environmental Research Center. Edgewater, Maryland, USA.
A photographic record of the beautiful, and often rare, native orchids that can be found in the area. Lynden, Washington, USA.
An interactive guide to the native orchids of Wisconsin. Descriptions and pictures. Jeffrey R. Hapeman. University of Wisconsin, USA.