Photo: Mentha x dalmatica.

Flowering stand, made bluer by the shade of a sunny day. Oulu bot.g., Finland. Planted. 2005-08-31.
Mentha x dalmatica Tausch Deu.: Dalmatiner Minze. Suom.: karjalanminttu. Sven.: karelsk mynta. Bot. syn.: See Mentha arvensis L. x longifolia (L.) Hudson.
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Photo: Mentha x dalmatica.