Buttercup Bonanza

Buttercup in pasture (The Buttercups of Indiana)

Does your pasture or barn lot look like this?  If so, you likely have an influx of buttercup; and you are not alone.  This weed has been very prevalent in area pastures this spring, due at least in part to a mild winter and early spring. 

The name buttercup is actually a common name associated with approximately 20 different weed species that are found in Indiana.  To complicate matters further, petal number and leaf appearance can vary within the same species, occasionally making exact identification difficult. 

The main concern with buttercup, regardless of species, is its toxicity to livestock.  While the amount required to be consumed to cause poisoning symptoms varies among species, all have the potential to cause drooling, diarrhea, weakness, bleeding, etc.  The good news is livestock rarely consume the weed, especially if there is an adequate supply of desirable forage.  Also, buttercup toxicity does not carry through to hay crops due to the break down of the toxins as the hay dries. 

Control of buttercup can be accomplished through a combination of soil testing/soil amending, mowing, and herbicide applications.  Additional information on buttercup biology and control, including specific herbicide recommendations, can be found in the Purdue Weed Science bulletin, The Buttercups of Indiana.