Carex brunnescens var. sphaerostachya (Tuckerman) Kükenthal

Carex brunnescens var. sphaerostachya (Tuckerman) Kükenthal is a synonym sensu FNA Ed. Comm., 2002a of:

Carex brunnescens subsp. sphaerostachya (Tuckerman) Kalela, an accepted subspecies name sensu FNA Ed. Comm., 2002a.