Teasel is a non-native species brought to North America by European settlers who used it to process wool. Source:

Forbs are flowering, non-grassy herbaceous plants.

They produce seeds and have stems and leaves that die back at the end of their growing season. Some forbs complete their growth cycle in one year, annuals, and some take two years to grow and release seeds, biennials. 

Invasive forbs of concern in Illinois



Learn to identify and manage invasive forbs.


Restore spring ephemeral wildflowers.