Calathea pachystachya (Poepp. & Endl.) Körn. belongs to the Marantaceae family. Flora of the World contains 1 recorded occurrence of this taxon, distributed across 1 country.
This name is a synonym
Specimens are listed under the accepted name Goeppertia pachystachya (Poepp. & Endl.) Borchs. & S.Suárez
