Redstem filaree is primarily a weed of turfgrass and landscapes that is found throughout the United States. Small taproot and fibrous root system.
Plants develop as a basal rosette.
Rosette leaves occur on petioles and are hairy. Individual leaves are divided into 3 to 9 individual leaflets that are arranged oppositely from one another. Growing along the ground or also may be ascending, with hairs, branched, often tinted red in color. The finely divided leaves, rosette growth habit, and opposite leaflets helps to distinguish this weed from most other winter annual weeds that are normally found in lawns and turfgrass. Additionally, the distinctive fruit and showy purple flowers are good identifying characters of redstem filaree.