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By Lindsey Bona-Eggeman
Missoula County Weed District, Weed Management Area Coordinator 

Beware of Cheatgrass


Photo provided.


Cheatgrass (Bromus tectorum) is an invasive grass that is widespread in Missoula County. This grass is a winter annual, meaning the seeds germinate in the fall and the plant overwinters, taking advantage of late fall and early spring moisture at a time when most of our native plants are dormant. This growth characteristic of cheatgrass gives it a competitive advantage over many of our native species and can be particularly problematic when trying to reseed disturbed areas.

Cheatgrass also is an effective invasive due to its efficient and prolific seed production. Seeds can germinate soon a...

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