In an effort to identify areas of invasive weed infestations in the watershed, the Colusa Basin Watershed Coordinator is creating GIS mapping of 8 species of invasive weeds:

1. Arundo

2. Salt Cedar (Tamarisk)

3. Tree of Heaven

4. Barbed Goat Grass

5. Purple Starthistle

6. Yellow Starthistle

7. Perennial Pepperweed

8. Yellow Water Primrose

This project is the first comprehensive weed mapping effort in the Colusa Basin Watershed and will be a great resource for land managers in Colusa, Glenn and Yolo Counties.