All plants, other than those listed above, shall be considered weeds. Any single weed species present to the extent of 10 percent of the total plant population shall be declared on the label by name and percentage under the heading “weeds”. When the total weed population exceeds 10 percent but no one species is present to the extent of 10 percent or more, an entry of “weeds” followed by the percentage will be shown. Prohibited Noxious Weeds. Johnson grass (Sorghum halepense) and poison ivy or poison oak (Rhus spp.) are declared to be prohibited noxious weeds and sod containing these species will not be permitted for sale. Restricted Noxious Weeds. The following plants are declared to be restricted noxious weeds: Bermuda grass (other than improved varieties intended for turf use)—cynodon dactylon var. dactylon. Giant Bermuda grass—cynodon dactylon var. aridus. Quack grass—elytrigia repens. Nutsedge—cyperus spp. Orchard grass—dactylis glomerata. Nimble will—mulhenbergia schreberi. Annual bluegrass—poa annua. Crabgrass—digitaria spp. Goose grass—eleusine indica. Foxtail—setaria spp. The following kinds, when present and not listed as a component, shall be considered restricted noxious weeds and so labeled: Tall fescue—festuca arundinacea. Bent grass—agrostis spp. Sod containing restricted noxious weeds shall bear the following statement: Contains the following restricted noxious weeds: ________, _____________, ______________, ____________, ___________. Any lot containing restricted noxious weeds, either individually or collectively exceeding 20 percent of the total plant population by plant count, shall be prohibited from sale. When coarse kinds are present in a mixture in excess of 10 percent, the mixture shall be labeled coarse textured.