Second, the morphological characteristics of durian tree:
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.
Bracts support 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.