The plant, purple loosestrife (Lythrum salicaria), and any hybrids thereof, is hereby designated a noxious weed. No person shall buy, sell, offer for sale, distribute or plant seeds, plants or parts of plants of purple loosestrife without a permit issued by the Missouri department of conservation. Such permits shall be issued only for experiments to control and eliminate nuisance weeds. Any person who violates the provisions of this section shall be guilty of a class A misdemeanor.

(L. 1989 H.B. 869 § 1)