Silybum marianum - Milk Thistle
Silybum marianum - Milk Thistle
Silybum marianum - Milk Thistle
Silybum marianum - Milk Thistle
Cirsium vulgare - Bull 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 nectaring at Malibu Creek State Park.
Cirsium occidentale - Cobweb Thistle
Cirsium occidentale var occidentale - Cobweb Thistle
Cirsium occidentale var californicum - California Thistle
Cirsium occidentale var californicum - California Thistle
Cirsium andersonii - Rose Thistle
Cirsium andersonii - Rose Thistle from higher elevations in the Sierra Nevadas.

©Dennis Walker