Asklepios-seeds | 10 seeds Camellia sinensis var. Assamica, real tea-tree, tea-plant, green- / black tea, Assam tea Camellia sinensis is the so called tea-shrub, tea-plant, or tea-tree. It's leaves are used for producing real black, as well as green tea.. Actually there are 2 varieties commonly available 1.) Camellia sinensis sinensis, which produces a bright tea with mild aroma and secondly there's 2.) C. sinensis assamica (Assam tea) which produces a darker tea with stronger taste.