Calamagrostis pickeringii var. debilis (Kearney) Fernald & Wiegand

Calamagrostis pickeringii var. debilis (Kearney) Fernald & Wiegand is a synonym sensu TROPICOS of:

Calamagrostis pickeringii A. Gray, an accepted species name sensu FNA Ed. Comm., 2007.