Rumex obtusifolius · bukalapė rūgštynė

EN · bitter dock, broad-leaved dock, bluntleaf dock DE · Stumpfblättrige Ampfer LT · bukalapė rūgštynė LV · struplapu skābene PL · szczaw tępolistny

https://en.wikipedia.org/wiki/Rumex_obtusifolius It is native to Europe, but is found on all temperate continents. It is a highly invasive species in some zones, resulting from its abundant seed dispersal, adaptability to reproduce, aggressive roots, ability to tolerate extreme climates, and hardiness.