Lilac is an evergreen tree with a height of 10-20m. Bark is gray and smooth; The single leaf is large, the leaves are opposite, the leaves are leathery, oval, entire, densely covered with oil glands, and the petiole is obvious.

The leaf bud is the top. Cymes or panicles with red or pink flowers; 1 group has 3 flowers and 4 petals. The bud is white at first, then turns green, and turns red when it grows to 1.5-2 cm long. Calyx is tubular, calyx is long, and there are 4 cracks at the top.

Lobes are triangular, bright red, with many stamens and lower ovary; Berry is oval, red or deep purple, with 1 seed in it, which is oval. Flowering period1-February, fruiting period: June-July.

Extended data:

Growth habit

Native to the tropics, I like tropical maritime climate. I like to be born in a tropical rainforest climate with high temperature and humidity, calm and small temperature difference. It has poor tolerance to low temperature and drought, and strong wind is extremely unfavorable to the growth of clove, which is suitable for fertile, deep and loose soil.

The annual average temperature is 23. 1℃-24.4℃, the monthly average maximum temperature is 26.0℃-28.4℃, the monthly average minimum temperature is 16.7℃- 18.8℃, and the annual rainfall is 1330-2530mm.

When the temperature is lower than 5℃, the young leaves are damaged, the buds fall off, and the plants die when it reaches 3℃. Young camphor trees like shade, are not resistant to sunlight and grow slowly. Mature trees like sunshine, and only when there is plenty of sunshine can they blossom early and more.