About Malacothamnus marrubioides (Durand & Hilg.) Greene
Malacothamnus marrubioides is a species of flowering plant in the mallow family. It has the common name Santa Clarita bushmallow. At present, it is only confirmed to occur in Los Angeles and Ventura counties, California. Its stated type locality indicates the species may once have grown further north, in the area that is now under or near Millerton Lake.