Medium
Counties and Cities do have the option to add additional weeds onto a list for enforcement only in their jurisdiction. The following are the weeds which have been added to individual county and city noxious weed lists.
| County | Weed | Scientific Name |
| Billings | Black Henbane Common Burdock Hoary Cress Common Mullein | Hyoscyamus niger Arctium minus Lepidium draba Verbascum thapsus |
| Bowman | Baby's Breath Black Henbane Scotch Thistle | Gypsophila paniculata Hyoscyamus niger Onopordum acanthium |
| Burke | Common Tansy False Chamomile | Tanacetum vulgare Tripleurospermum inodorum |
| Cass | Spotted Water Hemlock | Cicuta maculata |
| Cavalier | Common Tansy False Chamomile | Tanacetum vulgare Tripleurospermum inodorum |
| Dickey | Downy Brome | Bromus tectorum |
| Dunn | Black Henbane | Hyoscyamus niger |
| Golden Valley | Common Burdock Common Mullein Black Henbane Hoary Cress | Arctium minus Verbascum thapsus Hyoscyamus niger Lepidium draba |
| Grand Forks | Kochia | Bassia scoparia |
| Grant | Baby's Breath Black Henbane Common Burdock Halogeton | Gypsophila paniculata Hyoscyamus niger Arctium minus Halogeton glomeratus |
| Griggs | Common Mullein | Verbascum thapsus |
| Logan | Black Henbane | Hyoscyamus niger |
| McKenzie | Baby's Breath Black Henbane Common Burdock Halogeton | Gypsophila paniculata Hyoscyamus niger Arctium minus Halogeton glomeratus |
| Mountrail | Common Tansy | Tanacetum vulgare |
| Nelson | Perennial Sowthistle | Sonchus arvensis |
| Pembina | Common Tansy Kochia | Tanacetum vulgare Bassia scoparia |
| Ramsey | Annual Sowthistle False Chamomile Waterhemp | Sonchus oleraceus Tripleurospermum inodorum Amaranthus tuberculatus |
| Renville | Common Milkweed | Asclepias syriaca |
| Rolette | Common Tansy Orange Hawkweed | Tanacetum vulgare Hieracium aurantiacum |
| Sargent | Bull Thistle | Cirsium vulgare |
| Sheridan | Bull Thistle Common Milkweed | Cirsium vulgare Asclepias syriaca |
| Slope | Black Henbane | Hyoscyamus niger |
| Stark | Black Henbane Hoary Cress | Hyoscyamus niger Lepidium draba |
| Steele | Kochia | Bassia scoparia |
| Traill | Kochia | Bassia scoparia |
| Walsh | False Chamomile | Tripleurospermum inodorum |
| Wells | Common Milkweed Perennial Sowthistle | Asclepias syriaca Sonchus arvensis |
| Williams | Hoary Cress | Lepidium draba |