[2] Its conspicuous, yellow flowers begin to bloom as early as March, to as late as the end of June.

[3][13] Salix geyeriana is a shrub growing up to 5 m (16 ft) tall, sometimes forming dense colonial thickets.

[15] The lack of stipules and small, stubby catkins help identify this species; however, it easily hybridizes with many other willows in the wild; the daughter plants differ in morphology.

[3] Hybrids with S. bebbiana are known from Montana (collected from Beaverhead County); those with S. pedicellaris are known from Washington; and those with S. irrorata and S. ligulifolia are known from Arizona.

Tetraoninae), ducks (Anatidae), and other small birds, and small mammals regularly consume the buds, catkins, shoots, and leaves of G. geyeriana; and it is one of many Salix species used in the construction of beaver dams for North American beavers (Castor canadensis).