Tung oil is the fruit of Chinese parasol tree. Black seeds are hidden in the fruit and are hemispherical, which is used for pressing tung oil in industry. Born in a mixed forest, it can also be planted, with a flat nature and spicy taste.

Platanus acerifolia, a deciduous tree of Malvaceae, is16m high and its bark is turquoise and smooth. Leaves are heart-shaped, palmately 3-5-lobed, lobes triangular, apex acuminate, base deeply heart-shaped, both sides hairless or puberulent, petioles as long as leaves. The panicle is terminal, the flowers are yellow-green, the calyx is deeply divided near the base, the sepals roll out linearly, and the inner surface of the base is pilose.

Follicles are membranous, stipitate, split into leaves before maturity, covered with short hairs or hairs, and each follicle has 2-4 seeds. The seeds are spherical with wrinkles on the surface. Produced in northern and southern provinces of China, from Hainan Island to North China. Also distributed in Japan. Most of them are cultivated artificially.

Growth habit

Platanus acerifolia likes light, warm and humid climate, and its cold tolerance is not strong; The soil is fertile, moist, deep and well drained, and can grow on acidic, neutral and calcareous soil, but it is not suitable for planting in waterlogged depressions or saline-alkali land, and it is not tolerant of grass shortage. Water can easily rot roots, and waterlogging for five days can kill you. It usually grows well in plains, hills and canyons. Deep roots and strong roots; 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. It has strong resistance to a variety of toxic gases. Afraid of viral diseases, moths and strong winds. It should be planted on the edge of villages, houses, hillsides and limestone hillsides.