Equisetum hyemale var. elatum (Engelmann) C.V. Morton
Equisetum hyemale var. elatum (Engelmann) C.V. Morton is a synonym sensu FNA Ed. Comm., 1993 of:
Equisetum ×ferrissii Clute, an accepted species name sensu FNA Ed. Comm., 1993.
Equisetum hyemale var. elatum (Engelmann) C.V. Morton is a synonym sensu FNA Ed. Comm., 1993 of:
Equisetum ×ferrissii Clute, an accepted species name sensu FNA Ed. Comm., 1993.