From Camellia Sinensis a Perennial Evergreen Shrub. Green teas has a long history of use, dating back to China approximately 5,000 years ago. Green tea, Black tea and Oolong tea are all derived from this same plant. Tender young budding Green leaves are hand-plucked and processed immediately without fermentation, to produce this refreshing tea. Tender, Young, Budding, Revitalising.