Native Orchid Conservation Inc. NOCI is a non-profit group dedicated to habitat protection, study and appreciation of native plants and their ecosystems.
North American Native Plant Society Dedicated to the study, conservation, cultivation and restoration of native plants. Join us in our celebration of the unique botanical heritage of North America.
Useful Wild Plants Project coordinated around Austin, Texas, to document plants native to the Southern United States and Northern Mexico in a multi-volume encyclopedia. Information about activities and volunteering.
Wild Flower Society Society for amateur botanists/wild flower lovers in the UK.
