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Identifying a Prunus Tree in Oklahoma: Peach, Plum, Apricot, or Apple?

A gardener in south-central Oklahoma bought a country house with fruit trees. They narrowed to peach, apricot, or plum, but weren't sure. The tree hadn't flowered yet; bark underside was salmon-colored.

Tree leaves

Expert Analysis

The tree is a Prunus species (peach, cherry, plum, apricot, almond). The expert is fairly sure it's not a peach. The photo also raised the possibility of apple or crabapple, closely related to Prunus.

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