Did you know black, oolong, pu er, yellow, green and white tea come from the same plant?
This plant is called Camellia Sinensis. It exists many varieties but the most popular for producing teas are:
Camellia sinensis var. sinensis known as China bush
Camellia sinensis var. assamica, known as Assam bush (a state in northeastern India)
and the commercially unimportant Camellia irrawadiensis, called Cambodia bush.
Most cultivars fall under China bush, among many others, for instance, Shuixian, Dahongpao, Rougui, and some several dozen others best known for producing oolong.
Literally, “cultivated variety.” Any plant sub-variety within a particular cultivated species that distinguished by one or more characteristics. Thus wine grape cultivars include Chardonnay, Pinot Noir, Cabernet Sauvignon, etc.