Camellia Sinensis Thea Sinensis Tea Tree Poster

Camellia Sinensis Thea Sinensis Tea Tree Poster Camellia sinensis is the species of plant whose leaves and leaf buds are used to produce the popular beverage tea. It is of the genus Camellia (Chinese: 茶花; pinyin: Cháhuā, literally: "tea flower"), a genus of flowering plants in the family Theaceae. White tea, green tea, oolong, pu-erh tea and black tea are all harvested from this species, but are processed differently to attain different levels of oxidation. Kukicha (twig tea) is also harvested from Camellia sinensis, but uses twigs and stems rather than leaves. Common names include tea plant, tea shrub, and tea tree (not to be confused with Melaleuca alternifolia, the source of tea tree oil). There are two major varieties used for tea, Chinese tea, Camellia sinensis var. sinensis, and Assam tea, Camellia sinensis var. assamica. The leaves have been used in traditional Chinese medicine and other medical systems to treat asthma (functioning as a bronchodilator), angina pectoris, peripheral vascular disease, and coronary artery disease. Recent medical research on tea (most of which has been on green tea) has revealed various health benefits, including anti-cancer potential, effects on cholesterol levels, antibacterial properties and positive effects for weight loss.[17] It is considered to have many positive health benefits due to tea's high levels of catechins, a type of antioxidant. However, tea may have some negative impacts on health, such as over-consumption of caffeine, and the presence of fluoride and oxalates in tea. zazzle.