Elymus trachycaulus subsp. trachycaulus (Link) Gould ex Shinners
Poaceae
Brian Reif
B. Reif
10763
2007-05-06
United States, Arizona, Coconino, Grand Canyon National Park; Marble Canyon; Ryder Canyon 1 mi. southwest up canyon from trail junction. NPS-NVMP plot 03043. North-facing 27 deg. slope with talus and heavy grass cover.