Himalayan Balsam

Resources.

Here‘s what Wikipedia has to say about Impatiens glandulifera (Himalayan balsam) – try activating the little “exploding seeds” movie under the Description heading.

Centre for Agriculture and Biosciences International (CABI) – has a very useful Knowledge Centre for Himalayan balsam. 

PlantTracker – has a simple smartphone app which lets people report sites where invasive plants are found.

Non-native Species Secretariat (NNSS) – helps coordinate action against invasive non-native species in Great Britain.

Tyne Rivers Trust – organises volunteer balsam-bashing work on the Tyne and its tributaries.

Northumberland Rivers Trust – helps and advises Friends of Holywell Dene.