Photo: Mentha pulegium 4.

Flowering tops. Helsinki bot.g., (Kump.), Finland. Planted. 2002-07-26.
Mentha pulegium L. Engl.: pennyroyal, English pennyroyal, European pennyroyal, true pennyroyal. Deu.: Poleiminze. Suom.: puolanminttu. Sven.: polejmynta, loppmynta, poleja. Fran.: menthe pouliot, pouliot commun. Span.: poleo. Bot. syn.: Pulegium micranthum Claus, Pulegium vulgare Mill.
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Photo: Mentha pulegium 4.