1. Lemon: It belongs to the dicotyledonous plant Citrus, Rutaceae. Lemon is also called lemon fruit, foreign lemon and beneficial mother fruit. Small trees with little or no thorns, dark purple leaves and buds, thick papery leaves, oval or ovoid.
2. Crataegus pinnatifida, also known as Crataegus pinnatifida, belongs to Crataegus of Rosaceae, and is a deciduous tree with a height of 6 meters. Distributed in Shandong, Shaanxi, Shanxi, Henan, Jiangsu, Zhejiang, Liaoning, Jilin, Heilongjiang, Inner Mongolia, Hebei and other places.
3. Ziziphus jujuba: Ziziphus jujuba of Rhamnaceae is a variety of jujube. Also known as Spine, Spine, Zizyphus jujuba, Zizyphus jujuba, Gezhen, etc. , originated in North China and also distributed in south-central provinces.
4. Mume: It belongs to Dipterocarpaceae. Mume is a tree with a height of about 20 meters. Branchlets are stellate tomentose. Leaf blade leathery, oblong to oblong-lanceolate, apex acuminate or mucronate, base rounded or wedge-shaped, both sides protruding, reticulate veins obvious, petiole densely covered with grayish yellow short fluff.
5, passion fruit: passion fruit generally refers to egg fruit. Egg fruit is a herbaceous vine of Passiflora and Passiflora. About 6 meters long; Stems with fine stripes, glabrous; The leaves are papery, 6-13cm long and 8-13cm wide, with a wedge-shaped or heart-shaped base and no hair.