Special thanks to Windsor Castle Park for its partnership in this tree identification project in the park, and also to Bonnie Horne for her many hours taking pictures of leaves for the tree signs.
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Given below are good resources for the information presented above and contain additional descriptions that further add to your understanding. Click on any to learn more. Special credit given to the Virginia Tech Dendrology Fact Sheet for its pictures and information on the American holly tree. Also special credit is given to the Common Native Trees of Virginia for its concise and varied descriptions.
 
Virginia Tech Dendrology Fact Sheet American Holly
Common Native Trees of Virginia
USDA NRCS Plant Fact Sheet American Holly
Lady Bird Johnson Wildflower Center American Holly
Native American Ethnobiology DB American Holly​

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