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What Type of Tree Makes an Acorn? Only trees in the Quercus genus produce acorns. Watch a squirrel or chipmunk forage for food and no doubt a cache of acorns will appear. Acorns provide food for various wildlife, or they would otherwise litter the forest floor and rot since they are too heavy to disperse via wind.
Only one type of tree produces an acorn, but this includes more than 500 individual species. An acorn is technically a fruit because it houses a seed, but due to its hard outer shell itâs classified as a nut. This nut is specific to trees in the Quercus genus, collectively referred to as oaks.