Publication: Madroño 53(3): 293, f. 5. 2006.
selected vouchers: WTU
Notes: FNA24: "This species has previously been identified as either C. purpurascens or C. sesquiflora. It differs from C. purpurascens in having glabrous leaves, generally longer awns and inflorescence branches, and smoother glumes. It differs from C. sesquiflora in having narrower leaves, callus hairs that are longer relative to the lemmas, longer inflorescence branches, and glume apices that are not twisted, as well as in often preferring drier habitats."