A guide to the woody trees and shrubs of Tilden Nature Area and Tilden Regional Park.
If a species isn't on this guide, document it!
Willows, sallows, and osiers form the genus Salix, around 400 species of deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions of the Northern Hemisphere. Most species are known as willow, but some narrow-leaved shrub species are called osier, and some broader-leaved species are referred to as sallow (from Old ...more ↓