Purple Star Thistle is a noxious weed that is native to the Mediterranean. They are spiky plants with a purple flower at the top.
http://www.spacecoastwildflowers.com/2012_03_01_archive.html Johnsongrass, a coarse and generally clumping grass, is one of the most troublesome of perennial grasses. http://www.ipm.ucdavis.edu/PMG/WEEDS/johnsongrass.html |