Genus Salix
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.Species in the genus Salix of plants
Salix canariensis - It is a deciduous small tree, reaching a height of 7 m.
Florida willow - It is a deciduous shrub or small tree growing to 6 m tall. The leaves are alternate, 5–15 cm long and 2–5 cm broad, with a very finely serrated margin; they are green above, and paler below with short whitish hairs. The flowers are produced in catkins in early spring before the new leaves appear; it is dioecious, with male and female catkins on separate plants. The male catkins are 4–5.5 cm long; the female catkins are 5–7.5 cm long.
Salix kusanoi - It is a deciduous shrub or small tree growing to 6 m tall. The leaves are alternate, 9 cm long and 4 cm broad, with an entire margin; they are green above, and paler below with fine silky hairs along the veins. The flowers are produced in catkins in early spring before or as the new leaves appear; it is dioecious, with male and female catkins on separate plants. The male catkins are 8–9 cm long; the female catkins are 3 cm long.
Salix magnifica - It is a deciduous shrub or small tree growing to 6 m tall. The leaves are alternate, 10–25 cm long and 7–12 cm broad, with an entire margin; they are green above, and glaucous below, with red veins and petiole. The flowers are produced in catkins in late spring after the new leaves appear; it is dioecious, with male and female catkins on separate plants. The male catkins are 10 cm long; the female catkins are 10 cm long at pollination, expanding to 25 cm long at seed maturity.
Salix tarraconensis - It is a deciduous small shrub growing to 1 m tall. The leaves are alternate, 5–15 mm long and 2–5 mm broad, with a very finely serrated margin; they are green above, and paler below with short whitish hairs.