Die Stauden des Riesenbärenklaus (Heracleum mantegazzianum), auch Herkulesstaude genannt, werden bis zu vier Meter hoch und können Verbrennnungen dritten Grades hervorrufen. Die Pflanze kommt ursprünglich aus dem Kaukasus und wurde als Zierpflanze eingeführt. Inzwischen verbreitet sie sich auch in Mitteleuropa so stark, dass bereits über Maßnahmepläne zur Bekämpfung nachgedacht wird. http://www.ufz.de/index.php?de=6153
Source: Foto: Petr Pysek/Institute of Botany, Academy of Sciences, Czech Republik
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