Weed

(wed.) [From A. S. weod, tares.) (Bot.) Any plant which obtrusively occupies cultivated or dre ed ground, to the exclusion or injury of some particular crop intended to be grown. Thus, even the most useful plants may become weeds if they appear out of their proper place. The term is sometimes applied to any insignificant-looking or unprofitable plants which grow profusely in a state of nature; also to any noxious or usele plant. [s. 955]