Tea is an aromatic beverage prepared by pouring hot or boiling water over cured or fresh leaves of Camellia sinensis, an evergreen shrub native to East Asia which probably originated in the borderlands of southwestern China and northern Myanmar. Tea is also rarely made from the leaves of Camellia taliensis. After plain water, tea is the most widely consumed drink in the world. There are many different types of tea; some have a cooling, slightly bitter, and astringent flavour, while others have vastly different profiles that include sweet, nutty, floral, or grassy notes. Tea has a stimulating effect in humans primarily due to its caffeine content.
Camellia is a genus of flowering plants in the family Theaceae. They are found in eastern and southern Asia, from the Himalayas east to Japan and Indonesia. There are more than 220 described species, with some controversy over the exact number, and also around 3,000 hybrids. The genus was named by Linnaeus after the Jesuit botanist Georg Joseph Kamel, who worked in the Philippines and described a species of camellia.
White tea may refer to one of several styles of tea which generally feature young or minimally processed leaves of the Camellia sinensis plant.
Theaceae, the tea family, is a family of flowering plants comprising shrubs and trees, including the economically important tea plant, and the ornamental camellias. It can be described as having from seven to 40 genera, depending on the source and the method of circumscription used. The family Ternstroemiaceae has been included within Theaceae; however, the APG III system of 2009 places it instead in Pentaphylacaceae. Most but not all species are native to China and East Asia.
Camellia sinensis is a species of evergreen shrub or small tree in the flowering plant family Theaceae. Its leaves and leaf buds are used to produce the popular beverage, tea. Common names include tea plant, tea shrub, and tea tree.
Assam tea is a black tea named after the region of its production, Assam, India. It is manufactured specifically from the plant Camellia sinensis var. assamica (Masters). The Assam tea plant is indigenous to Assam—initial efforts to plant the Chinese varieties in Assam soil did not succeed. Assam tea is now mostly grown at or near sea level and is known for its body, briskness, malty flavour, and strong, bright colour. Assam teas, or blends containing Assam, are often sold as "breakfast" teas. For instance, Irish breakfast tea, a maltier and stronger breakfast tea, consists of small-sized Assam tea leaves.
Nilgiri tea is a drink made by infusing leaves of Camellia sinensis that is grown and processed in the Nilgiris district in Tamil Nadu, India. The leaves are processed as black tea, though some estates have expanded their product offerings to include leaves suitable for making green, white and oolong teas. It is generally described as being a brisk, fragrant and full-bodied tea. The region produces both rolled and crush, tear, curl tea and it is predominantly used for blending. Nilgiri tea is also used for making iced tea and instant tea.
Darjeeling tea is a tea made from Camellia sinensis var. sinensis that is grown and processed in Darjeeling or Kalimpong Districts in West Bengal, India. Since 2004, the term Darjeeling tea has been a registered geographical indication referring to products produced on certain estates within Darjeeling and Kalimpong. The tea leaves are processed as black tea, though some estates have expanded their product offerings to include leaves suitable for making green, white and oolong teas.
Kukicha (茎茶), or twig tea, also known as bōcha (棒茶), is a Japanese blend made of stems, stalks, and twigs. It is available as a green tea or in more oxidised processing. Kukicha has a unique flavour and aroma among teas, due to its being composed of parts of the tea plant that are excluded from most other teas.
Korean tea is a beverage consisting of boiled water infused with leaves, roots, flowers, fruits, grains, edible mushrooms, or seaweed. It may or may not contain tea leaves.
Exobasidium vexans is a plant pathogen affecting tea.
Cercospora theae is a fungal plant pathogen. It is the pathogen that causes bird's eye spot disease in tea plants.
Cydia leucostoma, the tea flush worm, is a moth of the family Tortricidae. It is found in India, Sri Lanka, Taiwan and Indonesia.
The phenolic content in tea refers to the phenols and polyphenols, natural plant compounds which are found in tea. These chemical compounds affect the flavor and mouthfeel of tea. Polyphenols in tea include catechins, theaflavins, tannins, and flavonoids.
Psychoactive plants are plants, or preparations thereof, that upon ingestion induce psychotropic effects. As stated in a reference work:
Psychoactive plants are plants that people ingest in the form of simple or complex preparations in order to affect the mind or alter the state of consciousness.
Black tea, also translated to red tea in various East Asian languages, is a type of tea that is more oxidized than oolong, yellow, white and green teas. Black tea is generally stronger in flavour than other teas. All five types are made from leaves of the shrub Camellia sinensis, though Camellia taliensis is also used rarely.
Camellia taliensis is a species of evergreen shrub or small tree whose leaves and leaf buds are used to produce tea.
Camellia pubicosta is a species of flowering plant in the Theaceae family. It is mainly cultivated in Vietnam. It is shrubby plant. Its height is 8–10 meters.
