Chimonanthus praecox, also known as Chimonanthus praecox, Chimonanthus praecox, Chimonanthus praecox, Chimonanthus praecox, Hemp Seed, Stone Herbal Tea, Tang Mei, Chimonanthus praecox and Chimonanthus praecox. Deciduous shrubs are traditional and precious ornamental flowers and trees, and are a specialty of China. They have a long cultivation history and rich wintersweet culture.

Elm leaf plum, also known as small pink plum, is named after its leaves are like elm leaves and flowers are like plum blossoms. For small shrubs, 2-3 meters high; Branches are spreading, with many short branches; Branchlets gray, annual branches grayish brown, glabrous or puberulent when young; Winter buds are short, 2-3mm long.

Branches are purple-brown, leaves are broadly elliptic to obovate, the apex is 3-lobed, and the edges are serrated with unequal thickness; Single to double purple, 1 ~ 2 peanuts in leaf axils, flowering in April; Drupe is red, subglobose and hairy.

Plum blossom has been cultivated in China for hundreds of years, and it is cultivated in most parks in China. This species blooms early and is mainly used for ornamental purposes. The common cultivation type is double-petal Ulmus pumila (double-petal pink flower; Sepals are usually 10), Luan Zhi (petals and sepals are 10, respectively, with pink flowers; There is no hair under the leaves)

Mei: small trees and sparse shrubs, with an altitude of 4- 10 m; Bark light gray or greenish, smooth; Branchlets are green, smooth and hairless. Leaf blade ovate or elliptic, leaf margin usually with small sharp serrations, grayish green. Flowers solitary or sometimes two peanuts in 1 bud, 2-2.5 cm in diameter, with strong fragrance, opening first and then leaves; Calyx is usually reddish brown, but some varieties of calyx are green or green purple; Petals obovate, white to pink. The fruit is nearly spherical, 2-3 cm in diameter, yellow or greenish white, pilose and sour; Mucosal nucleus; The nucleus is oval with slightly flattened sides. It blooms in winter and spring and bears fruit in May-June. 2n= 16，24 .

Extended data:

Plum is a small tree and sparse shrub with a height of 4- 10 m; Bark light gray or greenish, smooth; Branchlets are green, smooth and hairless. Leaf blade is ovoid or ovoid, 4-8 cm long and 2.5-5 cm wide, with tip and tail tip, wide wedge-shaped to round base, leaf margin with small sharp serrations, grayish green, pubescent on both sides when young, gradually falling off when growing, or pubescent only between inferior veins; Petiole length 1-2 cm, hairy when young, shedding when old, often with glands. ?

Flowers solitary or sometimes two peanuts in 1 bud, 2-2.5 cm in diameter, with strong fragrance, opening first and then leaves; Pedicel is short, about 65438 0-3 mm long, often glabrous; Calyx is usually reddish brown, but some varieties of calyx are green or green purple; Calyx tube broadly campanulate, glabrous or sometimes pubescent; Sepals ovate or suborbicular, apex obtuse; Petals obovate, white to pink; Stamens short or slightly longer than petals; Ovary densely pilose, style short or slightly longer than stamens. ?

The fruit is nearly spherical, 2-3 cm in diameter, yellow or greenish white, pilose and sour; Mucosal nucleus; The nucleus is oval, with a round top and a small protruding tip, the base gradually narrows into a wedge shape, the two sides are slightly flat, the abdominal edge is slightly blunt, there are obvious longitudinal grooves on the ventral and dorsal sides, and there are honeycomb holes on the surface. The flowering period is winter and spring, and the fruiting period is May-June (the fruiting period in North China is extended to July-August). 2n= 16，24 .

References:

Baidu Encyclopedia-Mei