For anyone not familiar: P. alba x P. tremula
GREY POPLAR
From wikipedia: White Poplar hybridises with the closely related Common Aspen Populus tremula; the resulting hybrid, known as Grey Poplar (Populus × canescens), is intermediate between its parents, with a thin grey downy coating on the leaves, which are also much less deeply lobed than White Poplar leaves. It is a very vigorous tree with marked hybrid vigour, reaching 40 m tall and over 1.5 m trunk diameter (much larger than either of its parents). Most Grey Poplars in cultivation are male, but female clones are occasionally found.[2]
The words "Poplar" and "Favorite" may not go together very often, but if I had to choose one this is it! I think of them as the poor man's Beech.
I've got a few at work that serve as my practice trees for trying out new stuff. Big, spready, lots of fun.