Avocado (scientific name: Butyrospermum parkii Kotschy), deciduous tree, 10-15 m tall, diameter 1-1.5 meters;The crown is open, the branches are many and dense, and the stems are thick, knobby and often curved.Bark thick, irregularly dehiscent, milky。Leaves are oblong, apex round or blunt, base round or blunt, rusty-colored pilose above when young, both posterior surfaces are glabrous, midvein grooves above, rounded and very raised below, lateral veins more than 30 pairs, parallel to each other, slightly raised on both sides, mesh veins fine;Circularity of petiole。Peduncle rusty-puberulent;Calyx lobes lanceolate, outer coated;Flowers sweet-tasting, corolla lobes ovate, whole margin。Berries spherical, 3-4 cm in diameter, edible, taste like persimmon;Seeds oval, yellowish-brown, glossy, scarring laterally, oblong。Flowering in June, fruit in October。