1, durian tree, evergreen tree. The leaves are oval with smooth surface and scales on the back. The fruit is spherical, with many hard thorns on the surface and delicious pulp, and it is one of the famous tropical fruits. Originally from Malaysia, it is also found in Guangdong and Hainan.
2, evergreen trees, up to 25 meters high, with scales at the top of young branches. Stipules are 1.5-2 cm long, with oblong leaves, sometimes obovate oblong, short or acute, rounded or obtuse at the base, shiny on both sides, smooth at the top, scales attached on the back, and lateral veins 10- 12 pairs, with length 15 cm. Petiole length 1.5-2.8 cm, cymes are slender and drooping, clustered on stems or big branches, with 3-30 flowers in each order; The bud is spherical; Pedicel scaly, 2-4 cm long.
3. Bracts supporting calyx, shorter than calyx, tubular calyx, 2.5-3 cm high, swollen at base, densely pilose inside, with 5-6 short and wide calyx teeth; Petals are yellowish white, 3.5-5 cm long, twice as long as calyx, rectangular spoon-shaped, and turned back; There are 5 bundles of stamens, each bundle has filaments 4- 18, and the filaments are combined at the base 1/4- 1/2; The capsule is oval, light yellow or yellowish green, long 15-30cm, thick 13- 15cm, with 2-6 seeds per room, white or yellowish white aril and strong smell. Flowering and fruiting period: June-65438+February.
4. According to the phenological characteristics of durian, it can be planted in the frost-free period when the daily average temperature is above 22℃, and it can be developed in parts of Hainan Province and Yunnan Province. Because durian can only grow and bear fruit in the climate with high temperature all the year round, even in the equatorial region, the highland above 600m above sea level can not grow durian or bear fruit because of the temperature drop. The listing season is from September to February every year, and production is also available in other months.