Habit, top and side; Habitat: Rocky alpine tundra and sparse conifer krummholz, noncalcareous sedimentary rock; Location: Summit of Haystack Mountain, NE of Slate Peak, North Cascades; Substrate: Rock; Elevation: 2226 meters.
Spores; Habitat: Alpine tundra; Location: Saddle on ridge above Our Lake, 2 km N of Headquarters Creek Pass; Substrate: Crevice in limestone; Elevation: 2345 meters; Notes: Cited as L. zosterae var. zosterae by Sliwa (2007).