River Willow

Salix fluviatilis

Physical Characteristics

Salix fluviatilis is a deciduous Tree growing to 7 m (23ft). See above for USDA hardiness. It is hardy to UK zone 3 and is not frost tender. It is in flower in May, and the seeds ripen in June. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). and is pollinated by Bees. The plant is not self-fertile. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil. Suitable pH: mildly acid and neutral soils. It cannot grow in the shade. It prefers moist or wet soil.

Distribution

Western N. America - Washington and Oregon.

Habitats

Woodland Garden Canopy; Secondary;

Edible Uses

None known

Medicinal Uses

Anodyne Febrifuge The bark has been used in the treatment of certain fevers[257]. The fresh bark of all members of this genus contains salicin[226], which probably decomposes into salicylic acid (closely related to aspirin) in the human body[213]. This is used as an anodyne and febrifuge[226].

Known Hazards

None known