ARM 4.5.207. PRIORITY 1B

(1) These weeds have limited presence in Montana. Management criteria will require eradication or containment and education: (a) Dyer's woad ( Isatis tinctoria ); (b) Flowering rush ( Butomus umbellatus ); (c) Japanese knotweed complex ( Polygonum spp. ); (d) Purple loosestrife ( Lythrum spp .); (e) Rush skeletonweed ( Chondrilla juncea ); (f) Eurasian watermilfoil ( Myriophyllum spicatum ); (g) Scotch broom ( Cytisus scoparius ); (h) Curlyleaf pondweed ( Potamageton crispus ).