Dr. Dirt: Galls cause little or no damage to host trees
Budburst | American sweetgum
Trees with red berries: our favorite red berry trees | Homes & Gardens
Garden Guides | Trees With Spiky Balls
Catalpa Tree Facts, Uses, and Planting Tips - Dengarden
Odd fruit in trees are wasp larvae, Connecticut experts say | Miami Herald
Field Guide to Trees
Which Trees Produce Spiky Round Balls? Here's How to Identify Them
Maclura pomifera - Wikipedia
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Walnut Trees Identification Guide (With Pictures): Leaves, Bark, Types
Trees and Shrubs - Pictured Rocks National Lakeshore (U.S. National Park Service)
What are these balls my dogwood tree? Are these like oak galls? : r/arborists
Black Walnut Tree Identification Guide: Leaves, Bark, Value Calculator, Pros and Cons
Black Walnut Trees: Facts About the Infamous Black Walnut | The Old Farmer's Almanac
Osage Orange - Eat The Weeds and other things, too
You'll Never Guess What's Inside These Cute Little Oak Tree Balls
What Are Oak Galls - Learn About Oak Apple Gall Treatment
Tree Spotlight: Osage Orange | Michigan Arbor Day Alliance
Strange Growth Reported on Ash? | News
An Adirondack Naturalist in Central New York: Things Falling from Trees
Giant Green Ball (Tree Fruit) PA : r/foraging
5 Worst Messy Trees for the Lazy Landscaper - Dengarden
Are Your Trees Dropping Acorns Like Crazy because winter will be tough? - Farmers' Almanac - Plan Your Day. Grow Your Life.
What is Osage Orange, and is it Edible? – Deep Green Permaculture
