| Common Name |
Scientific Name |
Image |
| Field Bindweed |
Convolvulus arvensis |
 |
| Canada thistle |
Cirsium arvense |
 |
| Musk thistle |
Carduus nutans |
 |
| Russian knapweed |
Centaurea repens |
 |
| Diffuse knapweed |
Centaurea diffusa |
 |
| Spotted knapweed |
Centaurea maculosa |
 |
| Skeletonleaf Bursage or Silverleaf Povertyweed |
Ambrosia tomentosa |
 |
| Woolly leaf Bursage or Woolly leaf Povertyweed |
Ambrosia grayi |
 |
| Whitetop or Hoary Cress |
Cardaria draba |
 |
| Perennial pepperweed or Tall Whitetop |
Lepidium latifolium |
 |
| Jointed Goatgrass(Photo Credit: Sam Brinker) |
Aegilops cylindrica |
 |
| Leafy spurge |
Euphorbia esula |
 |
| Purple loosestrife or purple lythrum |
Lythrum salicaria |
 |
| Showy milkweed |
Asclepias speciosa |
 |
