This species was recently published by Colombian botanists Jose Murillo and Luz-Amparo Triana-Moreno. It can be diagnosed by the impressed veins and 2.5 mm long dark hairs on the lower rachis.

Murillo-A., J. and Triana-moreno, L.A., 2022. Novelties in Austroblechnum (Blechnaceae) from Colombia. Phytotaxa572(3), pp.268-274.