quality:corruption, quality:correction, structural:scholar_edition, linguistic:translation
Camellia sinensis is a species of evergreen shrub or small tree in the flowering plant family Theaceae. Its leaves, leaf buds, and stems can be used to produce tea. Common names include tea plant, tea shrub, and tea tree. White tea, yellow tea, green tea, oolong, dark tea and black tea are all harvested from one of two major varieties grown today, C. sinensis var. sinensis and C. s. var. assamica, but are processed differently to attain varying levels of oxidation with black tea being the most oxidized and white being the least. Kukicha is also harvested from C. sinensis, but uses twigs and stems rather than leaves.