In Cerdanya, environmental experts taking part in a bioblitz near Molí de Ger have reported the possible presence of Heracleum sp., commonly known as Caucasian hogweed. The event, the second of its kind in the area, focused on identifying plant and animal species around Ger.
Caucasian hogweed is considered a highly invasive plant. Its toxic sap can cause severe skin burns and blistering if it comes into contact with skin, especially when exposed to sunlight. It can also spread quickly and compete with native flora, which makes it a concern for biodiversity and ecosystem health.
The bioblitz brought together scientists and volunteers to survey the natural environment around Molí de Ger. Participants recorded a range of species, adding to local knowledge of the area’s ecological condition. For readers following environmental coverage across Catalonia, see our news page for related reporting.
The possible identification of Heracleum sp. adds to the challenge of managing invasive species in Catalonia. Previous bioblitz events in Cerdanya have also aimed to catalogue local flora and fauna, supporting conservation work and helping authorities track changes in habitats.
Further analysis will be needed to confirm whether the plant is Caucasian hogweed. If confirmed, environmental agencies would need to take steps to control its spread and reduce risks to both the environment and public health. For background on the species, readers can refer to the US National Invasive Species Information Centre and the Royal Horticultural Society.
