| bull thistle |
Cirsium vulgare |
3 |
| Canada goldenrod |
Solidago canadensis |
3 |
| Canada thistle |
Cirsium arvense |
6 |
| common burdock |
Arctium minus |
3 |
| common yarrow |
Achillea millefolium |
3 |
| dandelion |
Taraxacum officinale |
1 |
| dandelion |
Taraxacum spp. |
2 |
| giant ironweed |
Vernonia gigantea gigantea |
4 |
| goatsbeard |
Tragopogon spp. |
1 |
| goldenrod |
Solidago spp. |
1 |
| hairy cat's ear |
Hypochaeris radicata |
2 |
| hawkweeds |
Hieracium spp. |
3 |
| Jerusalem artichoke |
Helianthus tuberosus |
3 |
| joe pye weed |
Eupatoriadelphus spp. |
6 |
| perennial sowthistle |
Sonchus arvensis |
3 |
| stinking chamomile |
Anthemis cotula |
3 |
| western salsify |
Tragopogon dubius |
2 |
| white heath aster |
Symphyotrichum ericoides var. ericoides |
1 |