What is the shape of the veins of Platanus acerifolia?

The leaves are large, broadly oval in outline, 9-18cm wide and 8-16cm long, and the base is shallow triangular and heart-shaped, or nearly truncated. The upper part is palmately 5-7-lobed and sparsely 3-lobed. The central leaf is more than half deep, 7-9 cm long and 4-6 cm wide, and the leaves on both sides are slightly shorter.

There are a few cracked coarse teeth on the edge, and the upper and lower surfaces are covered with gray-yellow hairs at first, and then fall off. Only on the dorsal vein, there are 5 or 3 palmate veins emanating from the base; Petiole is 3-8 cm long, cylindrical, tomentose and swollen at the base; Stipules small, shorter than 1 cm, sheathlike at base.

Extended data:

Ecological habit

Like the light, like the humid and warm climate, relatively cold-resistant. The requirements for soil are not strict, but it is suitable for slightly acidic or neutral soil with good drainage. Weak alkaline soil can grow, but it is easy to turn yellow. The distribution of root system is shallow, so it is easy to be injured and inclined during typhoon.

Strong anti-air pollution ability, the blade has the function of absorbing toxic gases and dust retention. This kind of tree has tall trunk, lush branches and leaves, rapid growth, strong adaptability, easy survival, pruning resistance and smoke resistance, so it is widely planted as a street greening tree and a fast-growing timber tree. It has strong resistance to toxic gases such as sulfur dioxide and chlorine.