Flower:

Flowers are in racemes that branch off the main stem near the top of the plant. Individual flowers are about ¼ inch across with 5 yellow petals and orange-tipped stamens. The bract under the flower has a ring of tiny bristles. The flowering stems typically lean over, some to horizontal, and tend to elongate as the plant matures, the flowers becoming more widely spaced apart. Flowers bloom from the bottom up.

Leaves and stem:

Leaves are compound in groups of 5 to 9 large leaflets, with small leaflets in between the larger ones. Leaflets are up to 3½ inches long and 1½ inches wide, becoming smaller towards the base of the compound leaf. Leaflets are coarsely toothed, pointed at the tip, and are hairy along the veins on the underside. The main stem is covered in long spreading hairs, becoming sparsely hairy at the top of the plant.

Fruit:

Fruit is a dry seed, the top covered with hooked bristles

Notes:

There are 2 species of agrimony in Minnesota, Tall Hairy Agrimony and Roadside Agrimony (Agrimonia striata). Differences between them are subtle, the more obvious are that the latter has hairy underside of leaves, not just along the veins, the flowering branches are mostly erect, it is more densely hairy all the way up the stem, and it tends to be a larger, more robust plant overall.