Pu'er tea the "ripe" Shou Chá. All types of pu'er tea are created from "máochá" (毛茶), a mostly unoxidized green tea processed from "Camellia sinensis" var. "assamica", which is the large leaf type of Chinese tea found in the mountains of southern and western Yunnan (in contrast to the small leaf type of tea used for typical green, oolong, black, and yellow teas found in the other parts of China). Maocha can be sold directly to market as loose leaf tea, compressed to produce "raw" "shēngchá", naturally aged and matured for several years before being compressed to also produce "raw" "shēngchá" or
Assam tea provide him with samples of the leaves and seeds, which he planned to have scientifically examined. Robert Bruce died shortly thereafter, without having seen the plant properly classified. It was not until the early 1830s that Robert’s brother, Charles, arranged for a few leaves from the Assam tea bush to be sent to the botanical gardens in Calcutta for proper examination. There, the plant was finally identified as a variety of tea, or "Camellia sinensis" var "assamica", but different from the Chinese version ("Camellia sinensis" var. "sinensis"). The intervention of the colonizing British East India Company was realised through a