Mint with purple flowers12/31/2023 ![]() Recent sources recognize between 18 and 24 species. The variability has led to what has been described as "paroxysms of species and subspecific taxa" for example, one taxonomist published 434 new mint taxa for central Europe alone between 19. ![]() ![]() Seeds from hybrids give rise to variable offspring, which may spread through vegetative propagation. The taxonomy of the genus is made difficult because many species hybridize readily, or are themselves derived from possibly ancient hybridization events. More than 3,000 names have been published in the genus Mentha, at ranks from species to forms, the majority of which are regarded as synonyms or illegitimate names. cunninghamii was excluded in a 2007 treatment of the genus. cunninghamii should be included in Mentha. In 2004, a molecular phylogenetic study indicated that both M. For example, M. cervina has been placed in Pulegium and Preslia, and M. cunninghamii has been placed in Micromeria. Authors have disagreed on the circumscription of Mentha. The tribe contains about 65 genera, and relationships within it remain obscure. Mentha is a member of the tribe Mentheae in the subfamily Nepetoideae. The fruit is a nutlet, containing one to four seeds. The corolla is two-lipped with four subequal lobes, the upper lobe usually the largest. The flowers are white to purple and produced in false whorls called verticillasters. Leaf colors range from dark green and gray-green to purple, blue, and sometimes pale yellow. The leaves are arranged in opposite pairs, from oblong to lanceolate, often downy, and with a serrated margin. They have wide-spreading underground and overground stolons and erect, square, branched stems. Mints are aromatic, almost exclusively perennial herbs. Flowering verticillasters of a spearmint.
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