Carduus pycnocephalus
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Links to more images of and information about Carduus pycnocephalus:
Cal-IPC plant profile: Carduus pycnocephalus
TNC
Cal-IPC
CDFA
Jepson Treatment
USDA
Invasive.org
The content of the page was last modified Wednesday, 19-Mar-2008 15:12:04 MDT