Lycopus europeaeus · paprastoji vilkakojė

EN · gypsywort, gipsywort, bugleweed, European bugleweed, water horehound DE · Ufer-Wolfstrapp, Gemeiner Wolfstrapp LT · paprastoji vilkakojė, postuvas, vilkakoja juodė, vilkapėdė LV · Eiropas vilknadze PL · karbieniec pospolity

https://en.wikipedia.org/wiki/Lycopus_europaeus Gypsywort grows primarily in wetland areas. It grows along the borders of lakes, ponds and streams as well as in canals and marshes. Its carpels float which may aid dispersal of the plant and its rhizomeous roots also allow the plant to spread. It is in flower from June to September, and produces seeds from August to October.