Silybum marianum - Milk Thistle

Silybum marianum - Milk Thistle

Cirsium vulgare - Bull Thistle. Thistle is a great nectar plant as well as a host for Mylitta Crescents and Painted Ladies. This is an Anise Swallowtail taking nectar at Malibu Creek State Park.

Cirsium occidentale var occidentale - Cobweb Thistle

Cirsium occidentale var californicum - California Thistle

Cirsium andersonii - Rose Thistle from higher elevations in the Sierra Nevadas.