Salix × stipularis, commonly known as stipule willow, is a deciduous hybrid tree resulting from the cross between two species of willow. It is typically found in riparian zones, along streams and rivers, and in wetlands where it contributes to the stabilization of the soil and provides habitat for wildlife. The stipule willow can vary in size but generally reaches up to 20-30 feet in height with a similar spread, depending on the specific growing conditions and the parent species involved. Its appearance is characterized by a rounded to spreading form, with slender branches and elongated, lance-shaped leaves. The flowers, known as catkins, emerge in early spring before the leaves, and are generally yellowish or greenish, providing an early source of pollen for insects.

The stipule willow is valued for its rapid growth and adaptability to wet conditions, making it useful for erosion control and riparian plantings. It is also used for biomass production and as a source of flexible twigs for basketry. In cultivation, it requires consistently moist soil and full sun to part shade. It is tolerant of a range of soil types, including clay, but prefers those that are well-drained. While not commonly available in the nursery trade, it can be propagated from cuttings. Potential problems include susceptibility to pests such as aphids and diseases like willow scab and black canker. It is important to monitor for these issues to maintain plant health.CC BY-SA 4.0