North American Orchid Conservation Center
Coalition of organizations dedicated to conserving the diverse orchid heritage of North America. Edgewater, Maryland, United States.
A community of enthusiasts promoting orchid culture, propagation, education, hybridization, and conservation. Founded 1953. Baltimore, Maryland, United States.
Orchids from a variety of genera for sale with an emphasis on Paphiopedilums and Phragmipediums. Huntingtown, Maryland, United States.
Cypripediums for House and Garden
Information about growing Cypripedium orchids in a temperate climate garden. Clark Riley. Baltimore, Maryland, United States.
Slipper orchid taxonomy, images, awards, and more. Stephen Manza. Gaithersburg, Maryland, United States.
A non-profit organization creating an online visual database of orchid species and hybrids. Maryland, United States.
Information about meetings and other activities. Founded 1995. Frederick, Maryland, United States.