Appearance characteristics of buttonwood

Platanus acerifolia is a deciduous tree with a height of15m; The leaves are turquoise and smooth. Leaves heart-shaped, palmately 3-5-lobed, diameter 15-30 cm. Lobes triangular, tapering at the top, heart-shaped at the base, glabrous or slightly pubescent on both sides, 7 basal veins, and petioles as long as leaves.

Panicle terminal, about 20~ 50 cm long; The lower branches are as long as 14 cm, and the flowers are lavender; Calyx 5 deeply divided to the base, sepals strip-shaped, curled outward, 7~9 mm long, with yellowish pubescence on the outside and pilose on the inner surface only at the base; Pedicels are as long as flowers; The pistil of the male flower is as long as the calyx, and the lower part is thick and hairless. The anthers of 15 gather irregularly at the top of pistil, and the degenerated ovary is pear-shaped and very small. The ovary of the female flower is spherical and covered with hair.

Elite fruit is membranous, stalk-shaped, and splits into leaves before ripening, with a length of 6 ~ 1 1cm and a width of 1.5 ~ 2.5cm. There are short hairs or hairs outside, and each paste contains 2~4 seeds. The seeds are spherical with wrinkles on the surface, about 6~7 mm in diameter, and the flowering period is around June.

Sycamore tree is a light-loving plant. Suitable for fertile, moist sandy loam, such as alkali. Roots are fleshy, water-resistant, deep and thick; The germination ability is weak, so it is generally not suitable for pruning. It grows fast and has a long life span, and can live 100 years. In the growing season, the roots rot and die after being flooded for 3~5 days. Leaves grow late and fall early in autumn. Leaves, flowers, roots and seeds can all be used as medicine, and seeds can also be fried to extract oil.

It has strong resistance to a variety of toxic gases. Afraid of viral diseases, moths and strong winds. It should be planted on village roadsides, houses, hillsides, limestone hillsides, etc. Positive tree species, born in a warm and humid environment; Cold tolerance, drought tolerance and barren tolerance. Bark can't stand the hot summer sun. It grows well on sandy soil.

China phoenix tree is mainly produced in Zhejiang, Fujian, Jiangsu, Anhui, Jiangxi, Guangdong, Nanjing and Hubei provinces, and distributed from Hainan Island in Guangdong to Shandong, Beijing and Hebei in North China. It is also distributed in Japan, North Korea and South Korea. Most of them are cultivated artificially.