Taxonomy
Mentha is a member of the tribe Mentheae in the subfamily Nepetoideae. The tribe contains about 65 genera and relationships within it remain obscure. Different authors have disagreed on the circumscription of Mentha. Some authors have excluded Mentha cervina from the genus. Mentha cunninghamii has also been excluded by some authors, even in some recent treatments of the genus. In 2004, a molecular phylogenetic study indicated that both of these species should be included in Mentha.
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