Photo: Lycopus americanus 4.

Flowering tops. Helsinki bot.g. (Kaisan.), Finland. Planted. 2004-08-24.
Lycopus americanus Muhl. ex W. Bart. Engl.: American water horehound, bugleweed. Bot. syn.: Lycopus heterophyllus Raf., Lycopus longifolius Raf., Lycopus pauciflorus Raf., Lycopus sinuatus Ell.
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Photo: Lycopus americanus 4.