The following sources were used to collect the attributes listed.  Final determination was made by Jason Veil, Secrest Curator.

Websites:

Morton Arboretum:  https://mortonarb.org/plant-and-protect/search-trees-and-plants/

Missouri Botanical Gardens:  https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderSearch.aspx

United States Department of Agriculture:  https://plants.usda.gov/home/plantProfile

North Carolina State Extension:  https://plants.ces.ncsu.edu/find_a_plant/

Royal Horticultural Society:  https://www.rhs.org.uk/plants/

Great Plant Picks:  https://www.greatplantpicks.org/

Chicago Botanic Garden:  https://www.chicagobotanic.org/

 Books:

Dirr, Michael A.  Dirr’s Hardy Trees and Shrubs.  Portland, OR:  Timber Press, 1997

People:

Secrest Arboretum Staff