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Parameter Tree:
EARTH SCIENCE > AGRICULTURE > AGRICULTURAL PLANT SCIENCE > WEEDS, NOXIOUS PLANTS OR INVASIVE PLANTS
Definition:
Measurements related to 1) A plant growing out of place 2) more popularly,
an herbaceous plant which takes possession of fallow fields or finds its
way into lawns or planted fields, crowding the vegetation there and
robbing it of moisture and nutrients. 3) A plant whose usefulness is not
recognized or which is undesirable because of odor, spines, prickles, or
poisonous characteristics. 4) Any plant that harbors insects, fungi, or
viruses that may spread to nearby crop plants. 
Reference:
Adapted from: Herren, R.V., and R.L. Donahue. 1991. The Agriculture
Dictionary, Delmar Publishers INC. Albany, New york. 553pp.
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