United States, California, Butte, N of Magalia, on NE arm of Paradise Lake.
In forest of Pinus ponderosa, P. lambertiana, Pseudotsuga menziesii, Notholithocarpus densiflora, Quercus kelloggii, Corylus americana, Acer macrophyllum, A circinatum; with Arnica parryi, Corallorhiza maculata.