Oxalis stricta

Yellow Woodsorrel is a common pasture weed that also appears in home landscapes. You can identify it by its yellow flowers and notched heart shaped leaves. It is toxic for cattle and will be consumed if livestock has limited access to safe forage. It can also be consumed if it is in hay. Contact your local extension agent to assist you in identifying toxic weeds that are in your pasture. If small amounts of Woodsorrel are present in your pasture or landscape you can pull them by hand. If applying an herbicide read the pesticide label to correctly apply the chemical. 2,4-D and Dicamba both control Yellow Woodsorrel as well as some pre-emergent herbicides. Pre-emergent herbicides control the weeds before they emerge. If they have already emerged they will not control the weed. Always follow the herbicide label as it is the law. A few ways to prevent Yellow Woodsorrel is to have a healthy stand of turf as well as a properly fertilized pasture. For more information call North Carolina Cooperative Extension- Lee Center at 919-775-5624.