Some of the plants listed are prohibited from entry into Arizona unless accompanied by the appropriate federal and state permits. Additional weed species are regulated by the federal government and may not be transported without specific permit. Please visit the Arizona Noxious Weeds List at the Arizona Department of Argriculture:
http://azda.gov/PSD/quarantine5.htm. Arizona is also under the jurisdiction of the federal noxious weed list
http://www.aphis.usda.gov/ppq/weeds.