 | OrchidMania ENGLISH Organization supporting AIDS prevention and relief efforts. Encouraging enthusiasm for orchid cultivation, conservation, and appreciation, OrchidMania also maintains a collection of endangered orchid species. Based in San Francisco, California, USA.  |
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 | Orchid Digest ENGLISH History of the organization, slide programs, and affiliated society information. San Marino, California, USA.  |
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 | Diablo View Orchid Society ENGLISH Society for the East San Francisco Bay Area (Concord, Walnut Creek CA). Meeting information, a large photo gallery of members' orchids and newsletter archive.  |
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 | San Diego County Orchid Society ENGLISH Membership information, newsletter, conservation program, show schedule, photo gallery, articles, and culture sheets. San Diego, California, USA.  |
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 | Backbulbs ENGLISH Growing orchids from backbulbs as an inexpensive way to increase your orchid collection. Site features includes a blog and culture notes for many genera with photos. Richard Lindberg. Napa, California, USA.  |
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 | Pacific Central Judging Region ENGLISH Providing access to the AOS awards system. Images of awarded plants. Hints for those interested in orchid photography. Oakland and San Francisco, California, USA.  |
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 | Gold Coast Cymbidium Growers ENGLISH Bringing together those interested in the study and culture of Cymbidiums and other cool growing orchids. San Mateo, California, USA.  |
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 | Sacramento Orchid Society ENGLISH Membership and events information. Library listing and meeting photos. Virtual greenhouse tours. Founded in 1947. Sacramento, California, USA.  |
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 | About Orchids ENGLISH Basic orchid care for beginners. Features include pest and disease info, plant identification, photo gallery, FAQ, forum, and a blog. Marc Cohen. San Francisco, California, USA.  |
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 | Amos Orchids ENGLISH Blooming orchid plants, pottery, and related orchid products and supplies are offered. Tony Salumbides. San Mateo, California, USA.  |
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 | Valley Orchids ENGLISH Wholesale and retail orchid nursery located in Morgan Hill, California, USA.  |
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 | Hawk Hill Orchids ENGLISH Specialist growers of Masdevallia species and hybrids, Draculas, and other Pleurothallids. John Leather, Bob Hamilton, and Gary Meyer. Pacifica, California, USA.  |
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 | Orchids by Richard ENGLISH Blog dedicated to the care and admiration of orchid flowers. Los Angeles, California, USA.  |
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 | Orchid Society of California ENGLISH Membership information, newsletters, and events. The oldest orchid society (1937) on the West Coast of the USA. Oakland, California.  |
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 | Orchid Conservation Coalition ENGLISH Grassroots organization made up of people, orchid societies, and orchid businesses dedicated to raising awareness and money for orchid conservation.  |
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 | Zuma Canyon Orchids ENGLISH Phalaenopsis specialists. Culture notes. Amado Vazquez. Established in 1971. Malibu, California, USA.  |
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