The Rideau Valley Conservation Authority is trying to get rid of Impatiens glandulifera, also known as the Himalayan Balsam, a plant that is crowding out native species along Ottawa's waterways.

Stu Mills joined them on an expedition in Manotick and took photos from his journey which you can see in the gallery above.

Listen to the audio on the left to hear about the challenges conservation workers have just getting to where the plants grow.

To learn more about the Himalayan balsam, visit Ontario's Invading Species Awareness Program website.