News

Canada thistle (Cirsium arvense) is a creeping perennial broadleaf that is native to the Mediterranean area. It spreads ...
There are six species on the Iron County noxious weeds list: Whorled milkweed, Asclepias verticillata; bull thistle, Cirsium vulgare; burdock, Arctium spp.; cocklebur, Xanthium strumarium; curly dock, ...