Quercus bicolor (Swamp white oak): Fruit
The shiny, light brown, ovoid acorns are about 1 inch long, and are usually paired at the end of a 1- to 4-inch-long stalk. Acorns are shed in September and October, with large crops produced every 3 to 5 years. A bowl-shaped cup covers the lower one-third of the nut. Cup scales are slightly thickened and along the rim upward-pointing scales form a fringe.