The very small chestnut in the wild is called the small chestnut.

Wild Trichosanthes is also called sharp chestnut, arrow chestnut and chestnut. The same appearance as the chestnut, but smaller than the chestnut. It is a deciduous tree that can grow to a height of 30 meters and a trunk diameter of one meter. Its leaves grow on each other and are lanceolate in shape, but with some awn tips on the edges. In addition, its fruiting period is usually in September and October in autumn.

Species morphology

A large tree with a height of 30 meters, a diameter at breast height of 1.5 meters, winter buds about 5 mm long, dark purple-brown branchlets, and stipules 8-14 mm long. The leaves are oblong or lanceolate, 10-23 cm long and 3-7 cm wide, with a long acuminate to long tail-like tip at the top, and a narrow wedge-tip at the base of the new leaves.

Both sides are symmetrical, the base of the long leaves is round or wide wedge-shaped, one side is skewed, the cracked teeth on the leaf edge have long linear tips 2-4 mm long, the back of the leaf is hairless, but the young leaves are There are yellow scale glands and sparse long hairs on both sides of the leaf veins; the petiole is 1-1.5 cm long during the flowering stage and extends to 2.5 cm during the fruiting stage.

The male inflorescence is 5-16 cm long, with 1-3 (-5) flowers in the flower cluster; each cup has 1 (occasionally 2 or 3) female flowers, only 1 flower (rarely 2 or 3). 3) Strongly developed, with hairless styles and sparse hairs on the lower part. The mature cupule is nearly spherical, with spine diameter of 2.5-4.5 cm. The spines are either dense or sparse, and are 4-10 mm long. The nut is 15-12 mm long, 10-15 mm wide, and has hairs on the top. The flowering period is from May to July, and the fruiting period is from September to October.