Is Ailanthus altissima a Toona sinensis tree? Of course not!
Although the leaves of Ailanthus altissima and Toona sinensis are very similar, they are quite different when you look closely, especially the smell is different. Ailanthus altissima and Toona sinensis are very different. The main points are as follows:
Ailanthus altissima:
The crown is oblate or umbrella-shaped. The bark is grayish white or grayish black, smooth and slightly cracked. The branches are thick. Branchlets are stout. The leaf scars are large, obovate, with 1-2 pairs of coarse serrations in the middle and upper parts and near the base, with glandular points at the top of the teeth and 9 vascular bundle scars inside. Odd-pinnate compound leaves, alternate, lobules with a small number of coarse teeth near the base, ovate-lanceolate, petiole base enlarged, and 1 glandular points at the teeth end, with unpleasant smell.
Toona sinensis tree:
The bark is rough, dark brown and easy to peel off. Leaves with long stalks, even pinnate compound leaves, 30-50 cm long or longer; Leaflets 16-20, opposite or alternate, papery, ovate-lanceolate or ovoid-oblong, 9-15cm long and 2.5-4cm wide, with rounded apex, tail tip, wedge-shaped base on one side, asymmetrical on the other, and entire or serrated edge. There is no hair and spots on both sides, and the back is often pink-green. The petiole is 5- 10 mm long.
What's the difference between Ailanthus altissima and Toona sinensis? Ailanthus altissima and Toona sinensis are roughly the same in shape. The vitality of Ailanthus altissima is very tenacious. Ailanthus altissima likes sunlight very much, and it can grow in various harsh environments. It has the ability to kill bacteria and insects, and its ability to resist toxic pollution is super strong. This advantage keeps insects away from Ailanthus altissima, and it's good to feed them full. This trunk is suitable for wood.
The difference between Ailanthus altissima and Toona sinensis:
(1) The number of leaves is different. Ailanthus altissima has odd pinnate compound leaves, while Toona sinensis generally has even pinnate compound leaves.
(2) Leaves taste different. Ailanthus altissima leaves have peculiar smell, and Ailanthus altissima leaves have strong fragrance.
(3) The trunk is different. The surface of Ailanthus altissima trunk is smooth and does not crack, while Ailanthus altissima trunk often peels off in strips.
(4) Different fruits. Ailanthus altissima fruit is samara, while Toona sinensis fruit is capsule.
(5) The vascular bundles are different. Observing the leaf scars, Ailanthus altissima has 9 vascular bundles and Toona sinensis has 5.
Ailanthus altissima, Ailanthus altissima, Ailanthus altissima introduction. It is distributed in the southeast, north China, northwest China and all parts of the Yangtze River basin. Korea and Japan also have it.
? Deciduous trees, up to 30 meters high, with oblate or umbrella-shaped crown. The bark is grayish white or grayish black, smooth and slightly cracked. Branchlets are stout. The leaf scar is large, obovate, and there are 9 vascular bundle scars inside. Odd-pinnate compound leaves, alternate, lobules 13 ~ 25, ovate-lanceolate, with all middle and upper parts, 1 ~ 2 pairs of coarse serrations near the base, glandular points at the top of the teeth, and the base of the total stalk of leaves is swollen and smelly. May-June flowering, terminal panicle, white flowers, oval capsules, many seeds, flat membrane wings.
Ailanthus altissima likes light, but is not tolerant of shade. Strong adaptability, except clay, all kinds of soil and neutral, acidic and alkaline soil can grow, suitable for deep, fertile and humid sandy soil. Cold-resistant, drought-resistant, water-resistant and moisture-resistant, and will rot and die if accumulated water for a long time. Deep roots. Strong resistance to smoke and sulfur dioxide, less pests and diseases.
The trunk of Ailanthus altissima is straight and high, and the crown is round and hemispherical, which is quite spectacular. The leaves are thick and shady, and the trees are covered with red fruits in autumn. Although the leaves and flowers smell slightly, they are not serious, so they are still good ornamental trees and shade trees. In India, France, Germany, Italy, the United States and other countries, it is often regarded as a street tree, which is highly respected and called a paradise tree. China is rarely used as a street tree, but it is more common in Beijing residential quadrangles. Because of its strong smoke resistance, it is a good tree species for greening in industrial and mining areas. Because of its strong adaptability and strong tillering ability, it is a pioneer tree species for afforestation in mountainous areas and also a tree species for soil and water conservation and soil improvement in saline-alkali land.