IDAHO | Noxious Weeds
Acres of Noxious Weeds in Idaho
| Species | Infested Acres Inventoried | Infested Acres Estimated |
| Acroptilon repens (Russian knapweed) | 8,367 | 13,764 |
| Cardaria draba (White top) | 1,986 | 4,335 |
| Carduus nutans (Musk thistle) | 11,367 | 19,545 |
| Centaurea diffusa (Diffuse knapweed) | 24,444 | 91,378 |
| Centaurea maculosa (Spotted knapweed) | 20,680 | 43,600 |
| Centaurea solstitialis (Yellow starthistle) | 5,102 | 7,102 |
| Chondrilla juncea (Rush skeletonweed) | 22,315 | 85,330 |
| Chrysanthemum leucanthemum (Oxeye daisy) | 100 | 4,300 |
| Cirsium arvense (Canada thistle) | 22,402 | 37,682 |
| Cirsium vulgare (Bull thistle) | 315 | 1,400 |
| Convolvulus arvensis (Field bindweed) | 10 | 300 |
| Crupina vulgaris (Common crupina) | 60 | 200 |
| Cynoglossum officinale (Hounds tongue) | 100 | 400 |
| Cytisus scoparius (Scotch broom) | 4 | 300 |
| Euphorbia esula (Leafy spurge) | 59,431 | 74,489 |
| Hieracium aurantium (Orange hawkweed) | 20 | 900 |
| Hieracium pratense (Yellow hawkweed) | 300 | 2,800 |
| Hypericum perforatum (St. Johnswort) | 900 | 3,800 |
| Hyoscyamus niger (Black henbane) | 1,626 | 1,573 |
| Linaria genistifolia (Dalmation toadflax) | 421 | 2,136 |
| Linaria vulgaris (Yellow toadflax) | 346 | 104 |
| Potentilla recta (Suphur cinquefoil) | 400 | 4,600 |
| Tanacetum vulgare (Common tansy) | 65 | 900 |
| Onopordum acanthuim (Scotch thistle) | 1,330 | 3,000 |
| Lythrun salicaria (Purple loosestrife) | 205 | 152 |
| Tamarix ramosissima (Salt cedar) | 3 | 49 |
| Taeniatherum capt-medusae ( Medusa head) | 701 | 14,167 |
| Conium maculatum (Poison hemlock) | 246 | 1,754 |
| Isatis tinctoria (Dyer's woad) | 990 | 1,177 |
| Aegilops cylindrica (Jointed goatgrass) | 220 | 21 |
| Lepidium latifolium (Perennial pepperweed) | 200 | 300 |
| Tribulus terrestris (Puncture vine) | 30 | 0 |
| TOTAL | 189,932 | 421,558 |
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