Record INNS sightings

Have you seen an invasive species? Why not add it to our open access recording tool INNS Mapper. Follow the link to add and view invasive species records



Find out about INNS projects which are being undertaken in the region and how you can get involved


The Yorkshire Invasive Species Forum

The Yorkshire Invasive Species Forum (YISF) is a collection of organisations working together to tackle Invasive Non-native Species throughout the Yorkshire region.

Latest Projects

4 May 2020

American Skunk Cabbage Project

In 2019 YWT began a Volunteer-led project to tackle invasive plant American Skunk Cabbage
18 August 2020

Doing More for the Derwent – INNS Control

The Yorkshire Derwent Catchment Partnership showcase thier crucial work controlling INNS in the Derwent catchment
23 February 2020

EA Main River INNS programme

An overview of the Environment Agency's INNS Programme in Yorkshire
Find Out More

INNS Mapper

Submit INNS records directly to our open access webtool INNS Mapper. You can submit one-off sightings or a more detailed survey. All the data submitted is available to be viewed on our interactive maps, helping you explore the distribution of INNS in your area and to support plans to tackle these species.

Find out more

Latest on Twitter

Skunk cabbage. Not one of the plants I was hoping to find along the River Severn this morning

Last week we surveyed American Skunk cabbage along the meanwood valley trail, if you spot any invasive species while you are out and about – please get involved and upload records to irecord:


Today we visited the River Dearne, where @YISF__INNS have been trialling restoration of riverbanks left bare from Japanese knotweed treatment.

These areas are vulnerable to colonisation by Himalayan balsam so by revegetating them, it prevents Hb from dominating the bankside!