The tree’s popularity spread rapidly across the Midwest, with farmers planting Osage orange hedgerows to contain livestock before the advent of barbed wire.

Osage Orange (Maclura pomifera) is identifiable by its simple, glossy, ovate leaves, typically 2-5 inches long, which turn yellow in fall. The tree produces large, round, bumpy fruits, known as ...

The Donaldson orange tree. Credit: Giancarlo Buzzi, ARS ARS scientists made a "sweet" discovery that may be important to solving a major problem within the citrus industry.