Pussy willow is a name given to many of the smaller species of the genus Salix (willows and sallows) when their furry catkins are young in early spring. These species include (among many others):
* Goat willow or goat sallow (Salix caprea), a small tree native to northern Europe and northwest Asia.
* Grey willow or grey sallow (Salix cinerea), a small tree native to northern Europe
* American pussy willow (Salix discolor), native to northern North America.
Before the male catkins of these species come into full flower they are covered in fine, greyish fur, leading to a fancied likeness ...