Another species complex in "Attalea" includes "A. speciosa" and related species. Henderson (1995) recognised "A. speciosa" and "A. spectabilis", considering the latter to either be an acaulescent form of "A. speciosa" or a hybrid between "A. microcarpa" and it. Govaerts and Dransfield accepted "A. spectabilis", but Glassman considered it a dubious taxon. "Attalea vitrivir" was recognised as a distinct species by Michael Balick and coauthors; Glassman and Govaerts and Dransfield concurred, but Henderson considered it part of "A. speciosa". Glassman also described a fourth member of this group, "A. brejinhoensis", and it is accepted by Govaerts and Dransfield.