Botanical Gardens and Arboretums
Lady Bird Johnson Wildflower Center
http://www.wildflower.org/
Fairchild Tropical Botanic Garden
http://www.fairchildgarden.org/
Morgan Arboretum, McGill University
http://www.morganarboretum.org/ENGLISH/HOME_eng.htm
North Carolina Botanical Garden
http://ncbg.unc.edu/
Pennsylvania Horticultural Society
http://www.pennsylvaniahorticulturalsociety.org/home/index.html
Royal Botanic Gardens, Kew
http://www.kew.org/
