Sulfurcinquefoil, a member of the Rose family, is a perennial growing up toeighteen inches. It has well developed rootstock. Leaves, palmatelycompound, have five to seven toothed leaflets on each leaf. Leaves aresparsely hairy and appear green on the underside rather than silvery asin many Potentilla species. Flowers are light yellow with five petals,each flower producing numerous single-seeded oval achenes. Sulphurcinquefoil should not be confused with the native Mountain cinquefoil.
Sulfurcinquefoil can be found in disturbed areas such as roadsides andpastures. Colonies of plants are also seen in undisturbed sites. Thisweed has taken over miles of rangeland in Western Montana.
For more info and how to control, check out the La Plata County Weeds Dept. Fact Sheet