Botanic Gardens Conservation International
- Provides technical guidance, data and support for botanic gardens in almost 100 countries worldwide.
- http://www.bgci.org/

Native Plants Network
- Main site for the scientific "Native Plants Journal", also hosting a native plant propagation protocol database.
- http://nativeplants.for.uidaho.edu

Flora Locale
- Promotes the managed use of native plants for ecological restoration projects in the UK and Ireland. Includes details of training courses and other events, a bulletin board, and descriptions of current projects.
- http://www.floralocale.org/

Pukaha Mt. Bruce: Plant Conservation
- Program to protect threatened plant species within the park. Staff takes seeds and cuttings to create more breeding stock for the area flora.
- http://www.mtbruce.org.nz/the_plants.htm

Orchid Specialist Group
- Organization within the World Conservation Union aimed at the conservation and sustainable utilization of orchid species and their habitats. Information about task forces, news and events, electronic publications.
- http://www.ianparsons.creators.co.uk/OSG/Index-S.html

Center for Plant Conservation
- A national consortium of 28 botanical gardens and arboreta dedicated to saving America's endangered plants.
- http://www.centerforplantconservation.org/

Plantlife
- The wild plant charity, which carries out plant species and habitat conservation, owns and manages nature reserves, campaigns, and raises awareness through education.
- http://www.plantlife.org.uk/

Canadian Botanical Conservation Network
- A registered charitable organization which helps conserve biological diversity through networking tools and conservation programs for botanical gardens and arboreta.
- http://www.rbg.ca/cbcn/

The National Council for the Conservation of Plants
- Information on the conservation of the biodiversity of garden plants for the benefit of horticulture, education and science.
- http://www.nccpg.com

Royal Botanic Gardens Edinburgh, UK
- Conservation policy and aims and links to current projects.
- http://193.62.154.29/rbge/web/science/research/biodiversity/index.jsp

Cloud Forest Conservation
- Exhibit on cloud forest biodiversity conservation from the Strybing Arboretum Society. Details on rare and endangered plant species, collaborations with institutions world-wide and plant collecting expeditions to Southeast Asia.
- http://www.strybing.org/cf/

Plant Conservation Alliance
- Information about projects, grants and funding, meetingsand members.
- http://www.nps.gov/plants/

National Council for the Conservation of Plants and Gardens
- Information from the Gloucestershire group of the NCCPG including a newsletter, the programme for 2002, photographs and contact details.
- http://www.manntaylor.com/nccpg.html

Brooklyn Botanic Garden
- Information for the gardener about plant classification, structure, anatomy, physiology and a section on plant conservation.
- http://www.bbg.org/gar2/topics/botany/index.html

Tropical Marine Plant Conservation Working Group
- Provides information about marine algae and marine Spermatophytes growing on the coasts of Ryukyu archipelago
- http://www.ne.jp/asahi/marine-biology/seaweeds/

Maryland Native Plant Society
- Dedicated to Protecting, Conserving, and Restoring Maryland's Native Plants and Habitats.
- http://www.mdflora.org/

Institute for Plant Conservation
- A small unit within the University of Cape Town's Faculty of Science, undertaking research and extension and post-graduate teaching directed at improving the conservation status of the Cape Floristic Region.
- http://www.uct.ac.za/depts/ipc/

New England Plant Conservation Program
- A voluntary alliance of over 65 botanists, private institutions, and government agencies, organized to promote the recovery of New England's endangered flora.
- http://www.newfs.org/nepcop.htm

Plant Conservation Biotechnology
- Plant Conservation Group at the University of Abertay, Dundee whose main activity is the application of biotechnological techniques to plant conservation problems.
- http://scieng.tay.ac.uk/plant/

California Native Plant Society
- The CNPS is a non-profit organization dedicated to the appreciation and conservation of California native plants through education, science, horticulture and advocacy.
- http://www.cnps.org/

Georgia Plant Conservation Alliance
- Study and preserves Georgia's flora through multidisciplinary research, education, and advocacy; facilitate the recovery of rare, threatened, and endangered plants of Georgia and the southeast U.S. through collaborative efforts in our state; and communica
- http://www.uga.edu/gpca/

Plant Talk
- A magazine providing information, encouragement and advice on plant conservation.
- http://www.plant-talk.org/

New England Wild Flower Society
- The Society owns and manages seven sanctuaries in New England, protecting rare species as well as examples of New England habitats. In the wild, they monitor the survival of hundreds of rare plants and provide habitat management advice and information.
- http://www.newfs.org/conservationtab.htm

Aquatic Subsurface Injection Systems
- Seagrass restoration using patented planting and fertilization techniques. Services, photos, and contact information.
- http://www.seagrass.net/

Australian Network for Plant Conservation
- Objectives are to develop, maintain, and co-ordinate a national network of organisations and individuals, promoting co-operation and information exchange for plant conservation and contribute to the recovery and long term survival of threatened plants.
- http://www.anbg.gov.au/anpc/

Plant Genetic Resources Conservation Unit
- Responsible for acquiring, characterising, maintaining, evaluating, documenting and distributing genetic resources of agricultural and horticultural crops, including wild species.
- http://www.ars-grin.gov/ars/SoAtlantic/Griffin/pgrcu/

Royal Botanic Gardens, Kew
- Housing the largest living plant collection in the world, Kew Gardens also undertakes reaserch into taxonomy, economic and ethnobotany and conservation.
- http://www.rbgkew.org.uk/