Well, if you are stumped, it’s no wonder. The one on the left is tall meadow rue (with columbine-like foliage), and the right picture is a small early columbine. The columbine plants often get quite ‘bunched up’ foliage with the burst of flowers in the middle. The meadow rue grows much taller and has a different type of flower. Both are great pollinators. Meadow rue needs shade and the columbine can grow in sun or shade.
More info on the Meadow rue….meadow rue articlefinegardening2011 (2)