Emperor Qianlong gave betel nut as a national gift to the British envoy.

In ancient times, betel nut was the best gift for princes and nobles, and even the emperor of a country favored it. Emperor Wu of the Han Dynasty appointed South Vietnam to present betel nut as a tribute to the court, and Emperor Qianlong even gave it to the British mission as a "national gift".

At that time, great writers also wrote poems for betel nuts. Li Bai wrote "When is the golden plate, a welcome to recommend betel nuts", Su Dongpo wrote poems such as "Eating Betel Nuts", and Ou Yangxun, a calligrapher, also loved to treat customers with betel nuts. Royal aristocrats and many celebrities are so fond of betel nut, which shows that betel nut has a precious high-end position in ancient times. Introduction to Areca catechu

Areca catechu? L.), an evergreen tree of monocotyledonous plants, Primordata, Palmae and Areca, with erect arborescent stems, more than 1 meters high and up to 3 meters high, with obvious annular leaf scars, monoecious, multi-branched inflorescences, oblong ovaries, oblong or ovoid fruits, ovoid seeds, and a flowering and fruiting period of March-April.

Areca catechu is native to Malaysia, and China is mainly distributed in tropical areas such as Yunnan, Hainan and Taiwan Province. Widely cultivated in tropical Asia. Areca catechu is an important Chinese herbal medicine, and some ethnic minorities in the south still use the fruit as a chewing hobby.