noxious plants

  • Montana knapweed researcher sees work paying off. By Perry Backus. Missoulian. Aside from cheatgrass, the spread of the knapweeds: spotted knapweed, diffuse knapweed, Russian knapweed, and yellow starthistle, is probably the biggest exotic noxious plant problem in the West. Like cheatgrass, its adverse effects are often unappreciated by the casual observer of wildlife or those…

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