Black Oak (Quercus velutina)
Also known as: Quercitron Oak
Native: Eastern North America.
The bark is used as a source of quercitron, a yellow dye, and also for tannin. Height to 23m, but may occasionally be much taller.
Leaves are very variable, similar to the Quercus coccinea, though less deeply cut away. They are usually about 12.5cm long but may reach as much as 30cm in length. The upper surface is dark shy green, the lower surface is scattered with a thin scurf and has tufts of down in the vein axils.
Flowers are found with the young leaves in late May or early June, the females in the leaf axils.
Acorns fall in October and are up to about 1.8cm in length.