milk thistle (Silybum marianum)

Merced NWR: near Homen Dairy fence

Merced NWR: Eastside bypass near LT005d

Merced NWR: Eastside bypass near Lonetree Rd

San Luis NWR: East Bear Creek Pond 5

West of Campbell Creek Estates

Lake Success - Thumb Cove

Merced NWR: Eastside Bypass

Ramos Road

San Luis NWR: East Bear Creek Rusty Barrel

San Luis NWR: West Bear Creek, Fiddleneck Lake