Salix wolfi, or Wolf's willow, is a species of willow native to western United States, from north-central Montana and central Oregon to northern New Mexico.
It is a small, low-growing willow that grows about 40-100 cm (1-3 ft) tall. The leaves are about 1-5 cm long with either lanceolate or elliptic shape with long hairs on either side of the leaves. Twigs are pubescent with wavy hairs.
It is native to Oregon, Idaho, Montana, Wyoming, Nevada, Utah, Colorado and New Mexico.
Subalpine meadows, streams and ponds.