Tall Buttercup
(Ranunculus acris L.)

Photo from Weeds of the West, revised edition.

Photos from Montana Weed Control Association

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