Khakiweed (also known as creeping chaffweed or matt chafflower) is an invasive weed, poisonous,to livestock and considered one of the biggest turfgrass concerns in the southwest. The weed grows in patches flat to the ground and produces an abundance of prickly light colored seeds. The plant is extremely drought-resistant with a deep tap root that will regenerate the entire plant if only a small portion remains in the soil.
The prickly seeds easily attach themselves to clothing or animals and can easily be transported to new areas where its infestation continues.
Complete removal of the weed is hit and miss and currently no herbicide has been found to completely kill off the plant, although studies at the university level are continuing. Usually a combination of treatments is required. Growth regulator herbicides such as 2,4-D generally offer brief control of the visible foliage and then new seedlings emerge. A pre-emergent herbicide must also be applied to keep seeds from germinating.
Khakiweed is native to New Mexico, Arizona and west Texas.