They are smooth and leathery to the touch. Fruit resembles a grapefruit, being a yellowish-green, round, and an aggregate or grouping of many small individual fruits. Squirrels are about the only animals which eat the oranges. Both fruit and leaves have a white, sticky sap. Twigs are slender, light orange in color and bear short, sharp thorns.
Mature bark has the appearance of bands wrapped around a pole, with wide furrows.
It has an olive-orange color. The wood is very strong, bright yellow, turning dark upon exposure to air. Today Osage-Orange has several important uses. Despite some clearing, there are still many miles of hedges serving as both fences and windbreaks. The wood of this tree is the most durable wood we have in Missouri.