Mystery Fruit Identified: Osage Orange (Maclura pomifera)

A traveler spotted a tree with odd fruit near a dam between Nashville and Columbia, SC. The fruit was lime green, very bumpy like beads, the size of a large orange, with a sticky residue but no bad smell. Many fruits were on the tree and on the ground.

Expert Answer: The fruit is almost certainly Maclura pomifera, commonly known as Osage orange (not a true orange). The expert provides a link to a Wikimedia image for confirmation and invites the user to upload a photo if desired.