What kinds of Lagerstroemia indica are there?

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Yin Wei

Description: Yin Wei is a deciduous shrub, about 2.

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6 meters, the trunk is erect, the leaves are alternate or opposite, the branches are clustered, the leaves are dark green and smooth, only the veins are hairy, and the leaves are ovoid or obovate, and the whole margin. Flowers bloom in summer, and flowers bloom on new branches. Inflorescence is panicle, terminal or axillary. The inflorescence is about 15-25 cm long and 7- 13 cm wide. Flowers are white, and the petals are wavy and wrinkled.

crape myrtle

Common strains are: Lagerstroemia indica, Lagerstroemia indica, Yin Wei and so on. Lagerstroemia indica is relatively stable in Japanese Lagerstroemia indica.

Belongs to deciduous shrubs or small trees. Lagerstroemia indica is a small tree, sometimes shrubby, 3 ~ 7 meters high; The bark falls off easily and the trunk is smooth. The young branches are slightly quadrangular and slightly winged. Leaves alternate or opposite, subsessile; The leaves are ovoid, obovate or oblong, 3-7 cm long and 2.5-4 cm wide, smooth and hairless along the main veins. Panicle terminal, 4 ~ 20 cm long; The flower diameter is 2.5 ~ 3 cm; Calyx 6-lobed, lobes ovate, smooth outside; Petals 6, purple, red, pink or white, with irregular notches at the edge and long claws at the base; Stamens 36 ~ 42, outer 6 filaments longer; Ovary 6-loculed. The capsule is oval and spherical, 9 ~ 13mm long and 8 ~1mm wide, with 6 petals. Seeds have wings. The flowering period is from June to September, and the fruiting period is from July to September.

The older the trunk, the smoother it is. When touched by hand, the whole plant will vibrate slightly.

Bai Wei

Alias: Laojunxu, Baidangcao, Bailongxu, White Horsetail, White Horsetail, White Curtain, Half-pulled Ladle, Elaeagnus Elaeagnus, Cao Chun and Cynanchum atratum.

① Stellar Cynanchum atratum, also known as: 300, Cynanchum komarovii, Sophora alopecuroides, goat's milk, Shan Yan, Baidangcao, Laolongjiao, Yang Jiao Asarum, Shangtianti, Dayangsha, Jiugenjiao, Jiejikong, Dabashan, Shuangpod, mother-in-law sewing bag, bottom line mending and Shanlaogua gourd ladle. Asclepiadaceae, Cynanchum.

Perennial herb, 40 ~ 70 cm tall, with white milk on the plant. The rhizome is short and clustered with many slender strip roots. Stems erect, usually unbranched, densely grayish white pubescent. Leaves opposite; There is a short handle; The leaf blade is ovoid-elliptic to broadly ovoid, about 5 ~ 10 cm long and 2.5 ~ 7 cm wide, with a short tip, a round base, all around, green at the top, pubescent, gradually falling off with age, and light green at the bottom. Densely covered with gray-white fluff; The vein below bulges slightly. Umbellies axillary, pedicels short, pendulous, densely villous; The flowers are dark purple with a diameter of about1~1.5 cm; Calyx 5-parted, lobes lanceolate, laterally densely puberulent; Corolla 5-parted, lobes ovate-oblong, apex obtuse, lateral yellowish brown puberulent; Corona 5-lobed, elliptic lobes, the upper part around the top of pistil, almost as long as pistil, and the lower part connected with the base of filament; 5 stamens, the upper part and pistil synthesize pistil; Pistil is composed of 2 carpels, carpels slightly close, ovary superior, style pubescent, and stigma below pistil. Follicles are horny spindle-shaped, 5 ~ 8 cm long and 65438 0.5 cm wide. Seeds are numerous, oval, with narrow wings and long white hairs at the top. The flowering period is from May to July. Fruit-bearing period: August ~ 65438+ 10.

Growing on hillsides or forest edges. Distributed in most parts of the country.

(2) Cynanchum atratum, also known as white cowhide.

The shape is similar to Cynanchum atratum, but the upper part of the stem is prostrate and pubescent, the leaves are ovoid or ovoid, and the flowers are small, with a diameter of about 65438±0cm, which is yellow-green at first and then gradually turns into black-purple