Magnolia grandiflora is an evergreen tree with a height of 30 meters in the origin; the bark is light brown or gray, with thin scaly cracks; the branchlets are thick and have a septal pith; the branchlets, buds, and leaves underneath, petioles, densely brown or densely covered Taupe short hairy (glossy under the leaves of young trees). Magnolia grandiflora leaves thick leathery, elliptical, oblong-elliptic or obovate-elliptic, 10-20 cm long, 4-7 (10) cm wide, apex obtuse or short obtuse, base wedge-shaped, dark green leaf surface, with Luster; 8-10 lateral veins on each side; Magnolia grandiflora petiole 1.5-4 cm long, without stipule marks, with deep grooves.

Magnolia grandiflora flower is white, fragrant, 15-20 cm in diameter; tepals 9-12, thick fleshy, obovate, 6-10 cm long and 5-7 cm wide; stamens are about 2 cm long, filaments are flat, purple, anthers Introverted, the drug septum protrudes into a short tip; the pistil cluster is ellipsoid, densely covered with long hairs; the carpel is ovoid, 1-1.5 cm long, and the style is curled.
Aggregate fruit cylindrical oblong or ovoid, 7-10 cm long, 4-5 cm in diameter, densely covered with brown or light gray-yellow hairs; follicles dorsally split, abaxially round, and apex with long beak; Magnolia grandiflora seeds Nearly ovoid or ovoid, about 14 mm long and 6 mm in diameter. The outer seed coat is red. The seed is removed from the outer seed coat, and the top is elongated into a short neck. The flowering period of Magnolia grandiflora is from May to June, and the fruiting period is from September to October.