There is a difference, they are not the same plant.

1. Different attributes

Cinnamon belongs to the order Lauraceae, Lauraceae, and genus Camphor; longan belongs to the order Sapindaceae, Sapindaceae, and genus Longan.

2. Different morphological characteristics

Cinnamon leaves are alternate or nearly opposite, oblong to nearly lanceolate, leathery, with cartilage edges, involute, green, shiny, Hairless, petiole thick. Panicle axillary or subterminal. Flowers white, perianth lobes, filaments pubescent, flat, anthers elliptical-oblong, ovary ovoid. The fruit is oval, black-purple when mature, hairless, and shallow cup-shaped at the base. Flowers from June to August, fruits from October to December.

Longan is an evergreen tree with tall, pinnate leaves, opposite or alternate leaflets, terminal or axillary panicles, spherical fruit, bright black seeds, blooming from March to April, 7 ~Bearing in August.

3. Different effects

Cinnamon has the functions of warming the kidneys, dispersing cold and relieving pain, and can treat cold pain in the waist and knees, stomach pain caused by cold and deficiency, chronic indigestion, abdominal pain, vomiting and diarrhea, and amenorrhea caused by cold. .

Longan is warm in nature, sweet in taste, beneficial to the heart and spleen, and replenishes qi and blood. It has a good nourishing and replenishing effect and acts on insomnia, forgetfulness, palpitation, and dizziness caused by heart and spleen deficiency and insufficient qi and blood.

Baidu Encyclopedia - Cinnamon

Baidu Encyclopedia - Longan