Have you seen this plant?

With bright yellow flowers, Water Primrose is an attractive plant of wetlands and watercourses in South America.

Water Primrose

Photo: Trevor Renals

Unfortunately this species has been introduced across much of Europe as an ornamental plant, where it has had often severe effects on waterways. Forming dense mats, Water Primrose can clog watercourses; restricting recreational access and in some cases increasing flood risk. It also out-competes many native plant species and can cause depleted oxygen levels in water bodies, which affects aquatic fauna.

Invasive species are not demons, but as species in the wrong places they can have a damaging effect on the environment and the economy. As such they are considered the second greatest threat to global biodiversity (after habitat destruction). The GB Non-native Species Secretariat has lots of information about these species, and on their website you can find species alerts, which highlight those species recently detected or predicted to arrive in Great Britain.

Asian Hornet

Photo: Jean Haxaire

With rapid response it is hoped these species can be controlled before they become established and it is vital that the details of any sightings are reported. Current species alerts are for Asian Hornet, Killer Shrimp, Water Primrose and Carpet Sea-squirt.

Records for all non-native species are always welcomed as these further contribute to our knowledge of the county and species distribution. These should be supplied to the Sussex Biodiversity Record Centre.

Further information

GB Non-native Species Secretariat
How to submit a record
Invasive non-native species
Sussex Biodiversity Record Centre