Measurements were taken in three “treatments”: the non-woody riparian zone, the woody riparian zone without additional seeds, and the woody riparian zone with additional seeds. In each treatment, there were four plots, each of which was 10 m parallel along and 3 m perpendicular to the stream channel. Each plot had four plant composition transects along which we sampled four one m2 subplots along each transect. Vegetative cover of vascular plant species was determined using a modified Daubenmire scale, with measurements taken in the spring and autumn in 2010, 2011, and 2020. When a species was present at both times, the maximum annual cover was used.