Possibly the result of a cross between P. alba and P. tremula. The similarity with P. alba is especially marked.
A large fast-growing tree with a loose to dense crown and a tortuous trunk. The trunk is light grey-green, sometimes almost white and marked with horizontal stripes. The twigs and buds are covered with grey felt-like hairs. The triangular to ovoid leaves are glossy dark green, have an underside covered with grey felt-like hairs
and a roughly serrated to lobed edge. Approx. 5 -12 cm long and 4 - 9 cm wide. Yellowish-green in the autumn.
P. x canescens is suitable for landscaped areas and as a solitary in parks and belts of trees. Prefers moist nutritious soils but also grows in drier less nutritious soil. It cannot take peaty or acid soils. Stands up well to (sea) wind.