Habitat:
(This locality is a narrow, deeply incised gorge through Cambrian sandstone and Baraboo quartzite conglomerat. The gorge has a small stream and is constantly cool and moist and shaded. Surrounding uplands with woods of Quercus alba, Q. rubra.); Dry sandstone
Associated Species:
with Aconitum noveboracense, Pinus strobus, Betula lutea
Occurrence Remarks:
(Additional notes by M. Nee, 1977)