
Belongs within: Lamiaceae.
Mentha, the mints, is a primarily Holarctic genus of aromatic herbs, a number of which are cultivated for culinary use.
Characters (from Hickman 1993): Perennial from rhizomes, glabrous to hairy. Stems generally ascending to erect, generally branched. Leaf petioled to sessile, elliptic, ovate, or lanceolate, toothed to lobed. Inflorescences axillary, each head-like and subtended by leaves, or collectively spike- or panicle-like and by bracts. Flower with calyx more or less radial, generally ten-veined, lobes equal or unequal; corolla more or less two-lipped, lips generally equal, upper lip notched, lower lip three-lobed; stamens 4, more or less equal, generally exserted; style lobes unequal.
<==Mentha Linnaeus 1753A61 |--M. aquaticaBR65 |--M. arvensis [incl. M. arvensis var. villosa]H93 |--M. australisBR65 |--M. canadensisC55b |--M. cunninghamii Benth. in DC. 1848 [=Micromeria cunninghamii Benth. 1832; incl. Me. consimilis Colenso 1886]A61 |--M. gracilis [incl. M. serpyllifolia]BR65 |--M. nemorosa Willd. ex L. 1801 [=M. sylvestris nemorosa Benth. in DC. 1848]L95 |--M. × piperita L. 1753L95 (see below for synonymy) |--M. pulegiumBR65 |--M. rotundifolia [=M. spicata var. rotundifolia; incl. M. citrata]H93 |--M. saturejoidesBR65 |--M. spicataHE80 [incl. M. viridis Linnaeus 1763BR65] | |--M. s. var. spicataH93 | |--M. s. var. longifoliaH93 | `--M. ‘longifolia’ ssp. typhoidesAGF98 |--M. suaveolensH93 |--M. sylvestrisC55a `--M. × villosa [M. spicata × M. suaveolens]L95
Mentha × piperita L. 1753L95 [M. aquatica × M. spicataBR65; incl. M. citrata Ehrh. 1792L95, M. aquatica glabrata Benth. in DC. 1848L95]
*Type species of generic name indicated
References
[AGF98] Abd El-Ghani, M. M., & A. G. Fahmy. 1998. Composition of and changes in the spontaneous flora of Feiran Oasis, S Sinai, Egypt, in the last 60 years. Willdenowia 28: 123–134.
[A61] Allan, H. H. 1961. Flora of New Zealand vol. 1. Indigenous Tracheophyta: Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledones. R. E. Owen, Government Printer: Wellington (New Zealand).
[BR65] Black, J. M., & E. L. Robertson. 1965. Flora of South Australia. Part IV. Oleaceae–Compositae. W. L. Hawes, Government Printer: Adelaide.
[C55a] Candolle, A. de. 1855a. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 1. Librairie de Victor Masson: Paris.
[C55b] Candolle, A. de. 1855b. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.
[HE80] Healy, A. J., & E. Edgar. 1980. Flora of New Zealand vol. 3. Adventive cyperaceous, petalous and spathaceous monocotyledons. P. D. Hasselberg, Government Printer: Wellington (New Zealand).
[H93] Hickman, J. C. (ed.) 1993. The Jepson Manual: Higher Plants of California. University of California Press: Berkeley (California).
[L95] Liogier, H. A. 1995. Descriptive Flora of Puerto Rico and Adjacent Islands: Spermatophyta-Dicotyledoneae vol. 4. Melastomataceae to Lentibulariaceae. Editorial de la Universidad de Puerto Rico.