Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
M. arvensis of Michigan Flora.
Our only native species of Mentha. Moist ground and wet places generally, whether disturbed or undisturbed: marshes and wet shores, borders of rivers and streams, fens and wet prairies, swamps (hardwood, cedar, tamarack), thickets (often with willows and alder), beach pools, ditches and swales, meadows and pastures.
North American plants are apparently derived from ancient hybridization of the European M. arvensis and M. longifolia (Tucker & Chambers, 2002). Morphologically, they differ from M. arvensis in usually being more stiffly upright plants with narrower, and usually more acute and sharply toothed leaves, and narrower and more acute calyx lobes.