After we re-discovered the location of the Liparis liliifolia on the North Tract, Dave and I did a little foraying in the powerline area. We found some patches of Rubus hispidus (Swamp Dewberry) in bloom. It is also sometimes called Bristly Dewberry.
It differs from the other two species of Dewberry (R. flagellaris and R. trvialis) found on the refuge by the lack of prickles or thorns. R. hispidus usually tends to like wetter areas than the other two species.