Key to Species: 13
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Racomitrium varium - Canton Creek Reserve, Douglas Co., Oregon. Figura s.n. 1998.
13a Alar and supra alar margin with thin walled, rectangular to elongate cells forming a pellucid border 10-20 cells long; basal marginal cells always enlarged or elongate on some leaves; sometimes with a second, shorter row of thin walled cells; margins always unistratose
Couplet 14
Racomitrium sudeticum - Cherry Peak, Klamath Co., Oregon. DHW 8117.
13b Marginal cells of alar region generally nodose thickened or, if thin walled marginal cells are present, confined to the alar region; a long border of small, thin walled cells is sometimes present in the species whose upper margins are bistratose
Couplet 15
Guide to Racomitrium of Oregon
Created 2007 Northwest Botanical Institute