Oxalis frutescens
Oxalis frutescens, the shrubby woodsorrel, is a species of flowering plant in the family Oxalidaceae. It is native to New Mexico, Texas, Mexico, Central America, the southernmost Caribbean islands, and tropical South America as far as northern Argentina. A perennial subshrub reaching, it is typically found in sandy soils in grasslands, pastures, roadsides, and open oak woodlands.