Qin Forsythia is produced in the southeast of Gansu, Shaanxi, the west of Henan and the northeast of Sichuan.
Forsythia is a deciduous shrub, 1-3m high, with upright branches, cylindrical, grayish brown or gray, sparsely round lenticels, thin-film exfoliation outside, slightly quadrangular twigs, brown or light brown, glabrous, often sickle shaped bending, with lamellar pith.
In the forest on the hillside or low hillside, in the valley thicket or sparse forest, in the mountain ditch, river beach or forest edge, or in the stone gap of the mountain ditch, the altitude is 800m-3200m.
Lijiang Forsythia is produced in the northwest of Yunnan and Muli of Sichuan. It grows in the hillside shrub, under the forest, or in the mountain mixed forest.
Lijiang Forsythia is very similar to Qin forsythia, the difference is that the latter has not only the whole leaf with no hair on both sides, but also the leaves with coat and sparse small sawtooth, and other characteristics are basically the same.
Forsythia in Northeast China is a deciduous shrub of Forsythia in rhinoceros family. It is native to Fenghuang mountain, Liaoning Province, China, and cultivated in three northeastern provinces.
The flowers are yellow and open before the leaves. Just after the cold winter, the trees are full of golden yellow. If they are planted in pieces, they will be dazzling. The flowering period is in May and the fruit period is in September. They are one of the excellent early spring flowering shrubs in Northeast China. The stems, leaves, fruits and roots can be used as medicine.
Strange Forsythia is produced in Shanyang, Shaanxi Province, and grows on the roadside between mountains.
Forsythia strangely fallen leaves or climbing shrubs, 1.2-3 meters high, cylindrical branches, brown, glabrous, densely irrigated raised lenticels, branchlets light brown, quadrangular, puberulent, hollow internodes.
The difference between qiqiforsythia and forsythia Qin lies in that the leaves of qiqiforsythia are whole, there are fluff on both sides, and the difference between qiqiforsythia and forsythia Qin lies in the hollow internode of the branch, the length of the fruit stalk is 1.2-2cm.
Forsythia ovale is native to Korea and cultivated in Northeast China.
The height of Forsythia ovale is 1-1.5 meters, with spreading branches. The twigs are grayish yellow or yellowish brown, glabrous, gray or dark gray when they are old, slightly angulate and lamellar pith.
