This has for many years been a popular shade and park tree over the north temperate zone of both continents. As an avenue tree in large parks and private places, it has been used with happy effect in giving variety of expression. Downing says truly: "For the purposes of shade and shelter the American species is the finest, as its foliage is longest and broadest."
In the Eastern States a fungus trouble of the leaves causes the foliage often to drop, followed by a new crop later in the season. This weakens the tree, and it is less planted than formerly. With the native species of the West this leaf disease has not appeared.