Noxious weeds. myrtle spurge, donkey tail (Euphorbia myrsinites)Euphorbia myrsinitesbur chervil (Anthriscus caucalis)spotted knapweed (Centaurea stoebe ssp. australis)Centaurea stoebe ssp. australiswhitetop, hoary cress (Lepidium draba)Lepidium drabaBalkan toadflax, broadleaf toadflax, and Dalmatian toadflaxLinaria dalmaticarush skeletonweed (Chondrilla juncea)Chondrilla junceaCanada or field thistle (Cirsium arvense)Cirsium arvensepoison-hemlock (Conium maculatum)Conium maculatumSt. Johnswort, klamathweed (Hypericum perforatum)Hypericum perforatumgoat’s-head, puncturevine (Tribulus terrestris)Tribulus terrestris