U.S.A., Montana, Glacier, East Flattop Mountain, 3 air miles NW of St. Mary, MT. East side of the park.
48.783333 -113.51667 unknown
48° 47' N, 113° 31' W
2439 meters
8000 ft.
Windswept alpine habitat.
On rock and moss. Abundant. Ver: B. McCune, 11/90 as X. taractica [mis-ID for North America]. Det: R. Rosentreter, 5/2010 as X. coloradoensis. Substrate: Saxicolous.