• Bowman's Hill Wildflower Preserve
• The Arboretum of The Barnes Foundation
• Hershey Gardens
  
• Hunt Institute for Botanical Documentation
• Jenkins Arboretum
• Longwood Gardens
• Morris Arboretum of the University of Pennsylvania
• Phipps Conservatory and Botanical Garden
• The Scott Arboretum of Swarthmore College
  
  

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