You selected Encephalartos longifolius var. latifolius Regel. This is a synonym for:

Accepted scientific name:
Encephalartos longifolius (Jacq.) Lehm. (accepted name) 1 literature reference for Encephalartos longifolius (Jacq.) Lehm.
Synonyms:
Encephalartos almasianus hort. ex J. Schust. (synonym) 1 literature reference for Encephalartos almasianus hort. ex J. Schust.
Encephalartos lanuginosus (Jacq.) Lehm. (synonym) 1 literature reference for Encephalartos lanuginosus (Jacq.) Lehm.
Encephalartos longifolius var. angustifolius Miq. (synonym) 1 literature reference for Encephalartos longifolius var. angustifolius Miq.
Encephalartos longifolius var. latifolius Regel (synonym) 1 literature reference for Encephalartos longifolius var. latifolius Regel
Encephalartos longifolius var. revolutus Miq. (synonym) 1 literature reference for Encephalartos longifolius var. revolutus Miq.
Encephalartos mauritianus Miq. (synonym) 1 literature reference for Encephalartos mauritianus Miq.
Encephalartos pungens (Aiton) Lehm. (synonym) 1 literature reference for Encephalartos pungens (Aiton) Lehm.
Encephalartos revolutus hort. ex J. Schust. (synonym) 1 literature reference for Encephalartos revolutus hort. ex J. Schust.
Zamia horrida Lodd. Cat. 166 ex Miq. (synonym) 1 literature reference for Zamia horrida Lodd. Cat. 166 ex Miq.
Zamia lanuginosa Jacq. (synonym) 1 literature reference for Zamia lanuginosa Jacq.
Zamia longifolia Jacq. (synonym) 1 literature reference for Zamia longifolia Jacq.
Zamia occidentalis Lodd. Cat 177 ex Miq. (synonym) 1 literature reference for Zamia occidentalis Lodd. Cat 177 ex Miq.
Zamia pungens hort. Parisien. ex Miq. (synonym) 1 literature reference for Zamia pungens hort. Parisien. ex Miq.
Zamia pungens Lodd. Cat. 165 ex Miq. (synonym) 1 literature reference for Zamia pungens Lodd. Cat. 165 ex Miq.
Common names: -
Classification:
Plantae
Phylum Cycadophyta
Class Cycadopsida
Order Cycadales
Family Zamiaceae
Genus Encephalartos
Distribution: -
Additional data: -
Source database: IOPI-GPC, 10.0, Aug 2007
Latest taxonomic scrutiny: Hill K.D. & Stevenson D.W., 2004
Online resource: http://www.bgbm.org/IOPI/GPC/PTaxonDetail.asp?RIDentifier=454912
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:e6135b3a-29c1-102b-9a4a-00304854f820:ac2010