milk thistle (Silybum marianum)

Papoose Pond South

Santa Ana Valley Road 3

East Le Grand Road 2

South Bay Aqueduct

Wetsel-Oviatt Road

John Smith Rd- Floor of Santa Ana Valley

Madera Canal Thistles No. 2

Miles Creek

Cunningham Ranch Thistles

Merced NWR: Chamberlain Road South