As used in this chapter, the following terms shall have the meanings indicated:
Includes burdock, chicory, crabgrass, garlic or wild onion, goldenrod, horse nettle, milkweed, morning glory, mullen, perennial thistle, poison ivy, quack grass, ragweed, sumac, wild lettuce, wild mustard, wild parsnip, wild snapdragon and all other weeds or growths which may become a menace to health by reason of flying pollen.