Mapleleaf Oak - Quercus acerifolia
The rarest of oaks, known only from four locations in Arkansas, this is a small tree, up to 45 feet tall with very dark bark that becomes furrowed and roughened with age. The leaves are elliptic with 5-7 lobes, up to 7 inches in length, and truncated or heart-shaped at the base. The lobes are sharply tipped and the top side is hairless and glossy, the lower surface with some hairs. The acorns take two years to mature; the cup covers up to a third of the acorn. This is an oak of dry slopes and ridge tops, growing to elevations of 2,400 feet.