United States, Minnesota, Lake, North Shore / Split Rock Lighthouse State Park. Lake County...Along the Lake Superior shoreline in Split Rock Lighthouse State Park, four miles southwest of Beaver Bay...Chapin's Point one mile northeast of the Split Rcok Lighthouse...T55N R8W SW1/4 of NW1/4 of NE1/4 Sec 33. 055N 08W 33
47.209082 -91.362072 +-800m. WGS84
in crevices...Full sun 10-40 feet above the lake in exposed, much-fractured diabase which slopes gradually to south. Associates include Veronica teucrium, Sedum purpureum, Dianthus deltoides, Poa compressa, Physocarpos opulifolius, Juniperus horizontalis, Potentilla fruticosa, P. tridentata, Diervilla lonicera, Achillea millefolium, Campanula rotundifolia, Euphrasia hudsoniana.