Willows are deciduous trees and shrubs belonging to the genus Salix. They are commonly found near water sources, such as rivers and lakes, and are known for their long, slender branches and narrow leaves. Willows can grow in various climates and are often recognized for their graceful, drooping appearance. These plants play an important role in their ecosystems by providing habitat and food for wildlife. Additionally, willows are used in landscaping and erosion control due to their ability to stabilize soil. Some species, like the weeping willow, are particularly popular for ornamental purposes in gardens and parks.