Introduction:

Jackfruit (Latin name: jackfruit. ) is an evergreen tree of Moraceae and Paramita. The height of the tree is 10-20m, and the bark is dark brown. Leaf leather oval, spiral arrangement; Flowers are monoecious, and when the fruit matures, the epidermis is yellow-brown, and there are tumor-like processes and coarse hairs on the surface. ?

Jackfruit is a tropical fruit and the heaviest fruit in the world. It generally weighs 5-20kg, and the heaviest fruit is over 59kg. The pulp can be eaten fresh or processed into canned food, preserved fruit and juice. Seeds are rich in starch and can be cooked; Sap and leaves can be used medicinally to reduce swelling and detoxify; The pulp has the effects of quenching thirst, promoting lactation, invigorating middle warmer and benefiting qi; Jackfruit is a beautiful shade tree and street tree with neat tree shape, thick crown and strange fruit. A century-old jackfruit tree with golden wood and hard material can be used to make furniture and yellow dyes.

Morphological characteristics:

Evergreen trees, 10-20m high, 30-50cm；; In DBH；; Old trees often have slab roots; The bark is thick and dark brown; ? Branchlets 2-6 mm thick, longitudinally wrinkled to smooth, glabrous; Stipules hold stems in a ring shape with obvious scars.

Leaves are leathery, spirally arranged, ovoid or obovate, 7- 15cm long or longer, 3-7cm wide, blunt or tapering at the top, wedge-shaped at the base, fully mature leaves, or leaves on young trees and sprouting branches are often divided, with dark green surface, light green or light brown after drying, hairless and shiny, light green at the back, slightly rough, and mesophyll cells. Petiole length 1-3 cm; Stipules clasping stems, ovoid, long 1.5-8 cm, externally appressed or glabrous, falling off.

Flowers are monoecious, and inflorescences are born on old stems or short branches. Male inflorescences are sometimes born in axillary branches or axillary branches. It is cylindrical or rod-oval, 2-7cm long, with many flowers and underdeveloped parts, and the total pedicel length is10-50 mm; The perianth of the male flower is tubular, long 1- 1.5 mm, 2-lobed at the upper part, puberulent, stamens 1, filaments standing upright in the bud, anthers oval, without degenerated pistil; The perianth of female flower is tubular, with teeth at the top, and the base is trapped in the axis of fleshy spherical inflorescence. Ovary 1.

Chrysanthemum fruit is oval to spherical or irregular in shape, with a length of 30- 100cm and a diameter of 25-50cm. It is light yellow when it is young and yellowish brown when it is mature, with hard hexagonal nodular protrusions and coarse hairs on its surface. Drupe is oval, about 3cm long and 1.5-2cm in diameter. Flowering in February-March.