Beilschmiedia appendiculata (C. K. Allen) S. K. Lee&Y. T. Wei): a small tree in the family Lauraceae and genus Cymbidium, with a height of 6-30 meters and a diameter at breast height of up to 60 centimeters; The bark is grayish yellow. The apical bud is densely covered with gray brown short hairs. Branchlets are hairless or covered in soft hairs, often thick and slightly angular. Leaves opposite or alternate, fruit elliptical or ovate elliptical, 1-1.8 cm long, about 1 cm in diameter, often with small nodules, green when immature, black when mature; The stem is 1.5-2 millimeters thick.

Laurel, scientific name: Laurus nobilis L., is an evergreen tree belonging to the Lauraceae family and the Lauraceae genus. It is distributed in Asia, Europe, and Africa, and has been introduced to many countries including China. Up to 12 meters tall, leathery leaves, oblong or oblong lanceolate, apex pointed or gradually pointed, petiole purplish red; The inflorescence bracts are nearly round, hairless, and the lobes are oblong or nearly round; The fruit is dark purple oval shaped; The flowering period is from March to May, and the fruiting period is from June to September. The name Laurel comes from the Greek mythological goddess Laurel.

Thick shelled cinnamon is a tree in the Lauraceae family, belonging to the genus Thick shelled cinnamon. It can reach a height of up to 20 meters and has rough bark. The old branches are thick, angular, light brown, with cylindrical branches. The leaves are alternate or opposite, leathery, elongated and elliptical, with a long or short pointed tip. The base is broad and wedge-shaped, with a shiny upper part and a pale white lower part. The petiole is concave and convex on the back. The inflorescence is axillary and terminal, covered with yellow small hairs. The flowers are light yellow in color, with extremely short flower stems and yellow small hairs on both sides of the perianth. The perianth tube is spiral shaped, and the perianth lobes are nearly inverted. The filaments are soft haired, and the ovary is rod-shaped. The style is linear, and the fruit is spherical or flattened. It is purple black when ripe, blooms from April to May, and bears fruit from August to December.