From editor or global species database
Type locality KU-MT-21 -MV-6550, Tavenner Ranch #2. SW 1/4,SW 1/4, sec. 11, T8N, R10W, Powell County, Montana. Locality is in southeast-facing exposures south of an irrigation canal and at the west end of a saddle on the drainage divide between Rock Creek and Mullan Creek. [details]