For the purposes of this chapter, the following words and phrases shall have the meanings respectively ascribed to them by this section:
IMPROPER GROWTH OF WEEDS OR GRASSES: All accumulations of weeds and grasses over eight inches (8") in height.
NOXIOUS WEEDS: Canada thistle (Cirsium arvense) and all of its varieties, perennial sow thistle (Sonchus arvensis), leafy spurge (Titymalus esula), Russian knapweed (Centaurea repens), Johnson grass (Sorghum halepense) and Sorghum almurn and crosses derived therefrom, giant foxtail (Setaria fabril), hoary cress (Lepidium draba) and ragweed (Ambrosia). (Ord. 2413, 6-17-2002)