↑ Raymond M. Harley, Sandy Atkins, Andrey L. Budantsev, Philip D. Cantino, Barry J. Conn, Renée J. Grayer, Madeline M. Harley, Rogier P.J. de Kok, Tatyana V. Krestovskaja, Ramón Morales, Alan J. Paton, and P. Olof Ryding. 2004. "Labiatae" pages 167-275. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). The Families and Genera of Vascular Plants volume VII. Springer-Verlag: Berlin; Heidelberg, Germany. ISBN 978-3-540-40593-1
↑ Jiranan Bunsawat, Natalina E. Elliott, Kate L. Hertweck, Elizabeth Sproles and Lawrence A. Alice. 2004. "Phylogenetics of Mentha (Lamiaceae): Evidence from Chloroplast DNA Sequences". Systematic Botany 29(4):959-964.
