| bull thistle |
Cirsium vulgare |
1 |
| Canada thistle |
Cirsium arvense |
15 |
| chicory |
Cichorium intybus |
2 |
| coltsfoot |
Tussilago farfara |
1 |
| common cocklebur |
Xanthium strumarium |
3 |
| common groundsel |
Senecio vulgaris |
4 |
| common ragweed |
Ambrosia artemisiifolia |
5 |
| common yarrow |
Achillea millefolium |
1 |
| dandelion |
Taraxacum officinale |
8 |
| dandelion |
Taraxacum spp. |
4 |
| flat-top goldentop |
Euthamia graminifolia var. graminifolia |
1 |
| giant ragweed |
Ambrosia trifida |
8 |
| goatsbeard |
Tragopogon spp. |
1 |
| goldenrod |
Solidago spp. |
1 |
| hairy cat's ear |
Hypochaeris radicata |
1 |
| hairy galinsoga |
Galinsoga quadriradiata |
6 |
| hairy white oldfield aster |
Symphyotrichum pilosum var. pilosum |
2 |
| hawkweeds |
Hieracium spp. |
2 |
| horseweed |
Conyza canadensis |
9 |
| Jerusalem artichoke |
Helianthus tuberosus |
1 |
| lawn burweed |
Soliva sessilis |
1 |
| mugwort |
Artemisia vulgaris |
1 |
| musk thistle |
Carduus nutans |
1 |
| oxeye daisy |
Leucanthemum vulgare |
2 |
| perennial sowthistle |
Sonchus arvensis |
1 |
| prickly lettuce |
Lactuca serriola |
1 |
| spotted joe pye weed |
Eupatoriadelphus maculatus |
1 |
| spotted knapweed |
Centaurea stoebe ssp. micranthos |
5 |
| western salsify |
Tragopogon dubius |
2 |
| white heath aster |
Symphyotrichum ericoides var. ericoides |
1 |
| white snakeroot |
Ageratina altissima |
1 |
| yellow hawkweed |
Hieracium fendleri |
1 |