Original sentence: Leaves are aromatic and high in essential oils, with two notable chemical forms: a piperitone and cineole chemotype.Oil yield fresh weight is 4.7%.The leaves were also used as a colonial condiment, especially in combination with a brewed black Camellia sinensis 'billy tea'
Edited sentence: Leaves are aromatic.The leaves of the piperitone chemotype are also used as a flavouring in Australia since colonial times, especially in combination with a brewed black Camellia sinensis 'billy tea'.The major producing region is eastern Transvaal, South Africa, where it is grown in commercial plantations.The oil yield is high at 4.7% of the leaf fresh weight.There are two notable chemotypes of E.dives: piperitone and cineole