13 July 2012.
Iowa, United States
Locality: Bluffton Fir State Preserve, SW 1/4 of Section 10, T99N, R9W, Bluffton Quad, near Bluffton, Winneshiek County.
Coordinates: 43.4108, -91.9385
(Map it)
Elevation: 343m.
Environment description: Mixed hardwood forest. Very steep, northwest-facing slope.
Number of plants sampled: 9
Associated species: Abies balsamea, Cornus alternifolia, Diervilla lonicera, Fraxinus nigra, Fraxinus americana (rare), Lonicera reticulata (rare), Ostrya virginiana, Physocarpus opulifolius, Populus tremuloides (nearby), Viburnum lentago, Staphylea trifolia, Pinus strobus, Rubus idaeus, Sambucus canadensis, Taxus canadensis, Tilia americana, and Viburnum trilobum.
Comment: Noted hundreds of Cornus rugosa at this collection site. A fairly dominant species tolerating and persisting in very dense shade.
Collector(s):