When I visited Jennings Prairie a week ago it took me a while to remember the name of this plant.
The flower spike is interesting but the flowers are unspectacular: small, five-petaled, yellow.
However, the leaves stand out because they’re so odd with small leaflets wedged between larger ones on the stem.
By examining the leaves I remembered this plant is slightly aggravating. When it goes to seed the pods have burs that stick to your clothing.
The seeds are “aggravating” and that sounds almost like “agrimony.”
I wish I had a mnemonic for the leaves.
(photos by Kate St. John)