The black willow is one of several species of willow in Indiana ... The bark on young trees is smooth, but may be warty or feature some flaking. In old trees, the bark features prominent, light gray ...

and the black willow (Salix nigra). All willow trees provide benefits, but some species have more to offer. Mature white willows can reach 75 to 100 feet tall with a gray-colored bark. The leaves ...