Lillie Cycad

Encephalartos dyerianusLavranos & D.L.Goode

Plante

CRLR Monde (IUCN)

Filtrer le graphe par contexte spatialPays · région · aire protégée · écorégion · biome

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Calcul du tissu écologique de Encephalartos dyerianus.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

CR · En danger critiquecritères B1ab(v)+2ab(v)↘Décroissante

Évaluation complète

Évaluation: 2022 · v3.1
Altitude: 680 – 720 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

The population size of Encephalartos dyerianus was originally estimated as approximately 600 mature individuals but 107 plants were illegally removed in January 2008, and it is thought likely that it has continued to decline, with poaching incidents on the unprotected hill having been recorded recently.

Menaces identifiées(1 menace classée CMP-IUCN)

5_2_1
Intentional use (species is the target)
UnknownUnknownOngoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

Reproductive failure may occur if more mature individuals are removed/poached from the population.

Habitats préférentiels (classification IUCN)

2_1Savanna - Dry
3_5Shrubland - Subtropical/Tropical Dry
4_5Grassland - Subtropical/Tropical Dry
6Rocky areas (eg. inland cliffs, mountain peaks)

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix I of the CITES Appendices. The low granite hill falls within the Lillie Flora Reserve. This reserve in turn falls within the boundaries of the privately owned Selati Game Reserve. Long-term monitoring of the population will support the conservation of this species.

Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert

1_2Resource & habitat protection
3_4_1Captive breeding/artificial propagation

Stress écologiques (3)Stresses Classification — IUCNExpert

2_1Species mortality
2_3_7Reduced reproductive success
2_3_8Other

Usage & commerce (2)Use & Trade — IUCNExpert

13Pets/display animals, horticulture
internationalnational
16Establishing ex-situ production *
national

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_3Life history & ecology
3_1Population trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadTree - large

Références bibliographiques (6)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
IUCN. 2022. The IUCN Red List of Threatened Species. Version 2022-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 21 July 2022).
Scientific Authority. 2013. National Environmental Management: Biodiversity Act (10/2004): Non-detriment findings. Government Printer, Pretoria.
Vorster, P. 1992. Focus on Encephalartos dyerianus. Encephalartos 29: 3-7.
Robbertse, P.J., Vorster, P. and van der Westhuizen, S. 1988. Encephalartos graniticolus (Zamiaceae): a new species from the nort-eastern Transvaal. South African Journal of Botany 54(4): 363-366.
Lavranos, J.J. and Goode, D.L. 1988. Notes on Southern African Cycadales. Bulletin du Jardin Botanique National de Belgique. Brussels 58: 219-224.

Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Bösenberg, J.D.

contributor

Donaldson, J.S. & Rodgers, S.

evaluator

Donaldson, J.S.

⚠ 1 erratum publié après l'évaluation.

Bösenberg, J.D. 2022. Encephalartos dyerianus (errata version published in 2023). The IUCN Red List of Threatened Species 2022: e.T41886A243425739. Accessed on 05 May 2026.