SD - SD Herbarium, San Diego Natural History Museum (SD)
1AA83655-A9FE-41F3-A48E-2BDAAA57263B
SD200685
Carduus pycnocephalus subsp. pycnocephalus
Asteraceae
Margaret R. Mulligan
1859
2007-04-09
04/09/2007
J. Gregory, S. Leininger
United States, California, San Diego, Camp Pendleton Marine Corps Base, Santa Margarita River, on North River Road ca. 3 miles NNE of its intersection with Macs Road (accessed by Stuart Mesa).
33.27153 -117.38168 WGS84
n/a
9 meters (30ft)
Sandy soils.
Invasive mustards and grasses, Conium maculatum, Picris echioides, and Foeniculum vulgare directly along road. Coastal Sage Scrub on NW side of ro