First, the appearance is different.

1, longan: the fruit is nearly spherical, with a diameter of 1.2-2.5 cm, usually yellowish brown or sometimes grayish yellow, slightly rough outside, or with a few slightly convex nodules; The seeds are dark brown and bright, and all of them are wrapped by fleshy aril.

2. Litchi: the fruit is ovoid to nearly spherical, 2-3.5 cm long, and usually dark red to bright red when mature; The seeds are all wrapped in fleshy arils. Spring blossoms and summer bears fruit.

Second, efficacy.

1, longan: rich in glucose, sucrose, protein, etc. Its iron content is relatively high. It can promote the regeneration of hemoglobin while improving heat energy and supplementing nutrition, thus achieving the effect of enriching blood. It is especially effective for brain cells, which can enhance memory and eliminate fatigue.

2. Litchi: Litchi has the effects of invigorating spleen and promoting fluid production, regulating qi and relieving pain. Litchi can nourish brain cells, improve insomnia, forgetfulness and dreaminess, promote skin metabolism and delay aging.

Third, distribution.

1. Longan (Longan): China is widely cultivated from southwest to southeast, with Guangdong being the most abundant, and Yunnan and southwest Guangxi are also found in wild or semi-wild forests.

2. Litchi: Litchi in China is mainly distributed in the range of north latitude 18-29 degrees. Southeast Asia is also cultivated, and Africa, America and Oceania have introduced records.

Baidu Encyclopedia-Longan (Sapindaceae)

Baidu Encyclopedia-Litchi (Fruit Plant)