Rule 4.5.207 - PRIORITY 1B(1) These weeds have limited presence in Montana. Management criteria will require eradication or containment and education:(a) Knotweed complex (Polygonum cuspidatum, P. sachalinense, P. × bohemicum, Fallopia japonica, F. sachalinensis, F. × bohemica, Reynoutria japonica, R. sachalinensis, and R.× bohemica);(b) Purple loosestrife (Lythrum salicaria);(c) Rush skeletonweed (Chondrilla juncea); (d) Scotch broom (Cytisus scoparius); and(e) Blueweed (Echium vulgare).NEW, 2010 MAR p. 217, Eff. 1/29/10; AMD, 2013 MAR p. 2419, Eff. 12/27/13; AMD, 2017 MAR p. 185, Eff. 2/4/2017 AUTH: 80-7-802, MCA; IMP: 7-22-2101, MCA