 It is a C-listed weed by the California Department of Agriculture and a Moderate Invasive Plant rating by the California Invasive Plant Council.It favors grasslands, woodlands, and chaparral vegetation types, but is especially prevalent in oak woodlands in and around the Central Valley.It is found in disturbed areas, often with basaltic soils, fertile soils, or soils with a relatively high pH (> 6.5).