Camellia sinensis Camellia sinensis Camellia sinensis is a species of evergreen shrub or small tree whose leaves and leaf buds are used to produce tea. It is of the genus "Camellia" () of flowering plants in the family Theaceae. Common names include "tea plant", "tea shrub", and "tea tree" (not to be confused with "Melaleuca alternifolia", the source of tea tree oil, or "Leptospermum scoparium", the New Zealand Tea Tree). "Camellia sinensis" var. "sinensis" and "Camellia sinensis" var. "assamica", are two major varieties grown today. White tea, yellow tea, green tea, oolong, dark tea (which includes pu-erh tea) and black tea are
Chinese tea culture or "cha wenhua" ("tea culture"). The word "cha" (茶) denotes the beverage that is derived from "Camellia sinensis", the tea plant. Prior to the 8th century BCE, tea was known collectively under the term 荼 (pinyin: tú) along with a great number of other bitter plants. These two Chinese characters are identical, with the exception of an additional horizontal stroke in the Chinese lettering 荼, which translates to tea. The older character is made up of the radical 艸 (pinyin: cǎo) in its reduced form of 艹 and the character 余(pinyin: yú), which gives the phonetic cue. There are several