Common Osier
Salix viminalis
The Common Osier is a fast-growing deciduous shrub or small tree that can reach heights of up to 10 meters. Its long, rod-like branches are extremely flexible and have been traditionally used for basket weaving. The leaves are characteristically narrow, lanceolate, and have a silvery-hairy underside. As a pioneer species, it prefers moist habitats such as riverbanks, floodplains, and wet meadows.
Details
Oxygen production
High oxygen production during the growing season due to rapid growth.
Habitat function
Provides nesting opportunities for songbirds and serves as a habitat for over 100 specialized insect species.
Nutrient uptake
Efficient uptake of nitrates and phosphates from groundwater.
Food source for
Honeybees, wild bees, hoverflies, beavers, butterfly caterpillars (e.g., Eyed Hawk-moth).
Human use
Basketry, fiber production, energy production in short rotation coppices, soil bioengineering for bank stabilization.
Ecology
Ecological role
Important pioneer species for soil stabilization and one of the most significant early pollen and nectar sources for insects.
Natural predators
Willow leaf beetles, caterpillars of various butterfly species, browsing by deer and beavers.
Competitor species
Other willow species (Salix spp.), alders (Alnus spp.), and invasive neophytes such as Himalayan Balsam.
Ecosystem service
Bank protection and erosion control, carbon sequestration, filtering of surface water, habitat for pollinators.
Threats
Loss of natural floodplains due to river channelization, lowering of groundwater levels, and intensive land use.
Scientific profile
Profile
Protection & threats
Main threats
Loss of river dynamics, embankments, groundwater depletion, and hybridization with non-native willow species.