|This is an erect to spreading and arching, deciduous, large shrub or small tree, to 15' tall and wide. Shoots often have a red tinge. Leaves are oblong, nearly entire, bluish-green, up to 3" long. Narrow, silvery-gray catkins, up to 1 1/4" long, males with purple to yellow anthers. Native to Europe, Central Asia, and North Africa.