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The Mission of the Yellowstone County Weed Department is to assist the public, private, and other government agencies to manage and control existing noxious weed infestations as well as to prevent new invasive species from infesting Yellowstone County.
Tall Buttercup Ranunculus acris L.
Photo from Weeds of the West, revised edition.
Photos from Montana Weed Control Association
Video Supplied By Montana Weed Control Association
| Attribute | Description |
|---|---|
| Toxicity | Toxic. Livestock when grazed (but not toxic when cured in hay). |
| Growth Habit | Hairy perennial reaching 3 feet in height. |
| Leaves | Lower leaves 3 to 5-lobed, deeply cut; upper leaves reduced and consisting of 3 to 4 narrow segments. |
| Stem | 3 feet in height, stems are much branched above. |
| Flower | Yellow flowers, 1 inch or more in diameter. |
| Roots | Course fiborous root. |
| Seeds | ¼ inch or slightly longer with smooth border, stout curved beak, and generally a spiny surface. |
| Reproduction | By seed. |
| Habitat | Occurs in meadows and pastures. |
| Biological Controls | — |
| Herbicide | Tordon + 2,4-D, or Milestone. |