Scarlet Willow. A spreading tree with orange-scarlet branches in winter. Produces yellow or yellow-green catkins in spring, with the leaves.
Woolly Willow. A compact rounded shrub with dull, dark green leaves covered with silvery grey wool. Produces golden yellow or grey-yellow catkins in late spring, with the leaves.
Black Pussy Willow. An upright shrub with grey-green leaves turning glossy green. Produces attractive black catkins with brick-red anthers in spring, before the leaves.