Cycas pranburiensis

S.L.Yang, W.Tang, K.D.Hill & Vatch.

Plante

CRLR Monde (IUCN)

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

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Calcul du tissu écologique de Cycas pranburiensis.

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

Liste rouge IUCN

CR · En danger critiquecritères B1ab(v)↘Décroissante

Évaluation complète

Évaluation: 2023 · v3.1
Altitude: 5 – 30 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

This species appears to be locally common, with the population size estimated to be between 2,500 and 10,000 mature plants. Nevertheless, there has been ongoing harvesting of plants from the wild and the population is estimated to have declined by 40% over the past 20 years (< one generation). Further extrapolation is difficult, and this is treated as a minimum population reduction.

Menaces identifiées(1 menace classée CMP-IUCN)

5_2_1
Intentional use (species is the target)
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

This plant is threatened by local plant collectors. The trade of mature plants has increased due to the interest in new plants for Bonsai projects within Thailand. Plants previously easily accessible and visible from the road are now gone. It is estimated that there has been a 40% decrease in the total population.

Habitats préférentiels (classification IUCN)

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

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

This species is listed in Appendix II of the CITES Appendices. Subpopulations of Cycas pranburiensis occur in the Khao Sam Roi Yot National Park. An education and awareness programme as well as the long-term monitoring of subpopulations will support the conservation of this species.

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

1_2Resource & habitat protection
4_3Awareness & communications

Stress écologiques (1)Stresses Classification — IUCNExpert

2_1Species mortality

Usage & commerce (1)Use & Trade — IUCNExpert

13Pets/display animals, horticulture
internationalnationalsubsistance

Priorités de recherche (1)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends

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

Royaumes biogéographiques

Indomalayan

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

CycadShrub - large

Références bibliographiques (7)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).
Bonta, M. and Osborne, R. 2007. Cycads in the vernacular: A compendium of local names. Proceedings of the 7th International Conference on Cycad Biology, Xalapa, Mexico, January 2005. Memoirs of the New York Botanical Garden 97: 143-175.
Tang, W. 2004. Focus on Cycas pranburiensis. Encephalartos 80: 15-22.
Whitelock, L.M. 2002. The Cycads. Timber Press, Portland, Oregon.
Hill, K.D. and Yang, S.-L. 1999. The genus Cycas (Cycadaceae) in Thailand. Brittonia 51(1): 48-73.
Yang, S. -L., Tang, W., Hill, K.D. and Vatcharakorn, P. 1999. Cycas pranburiensis (Cycadaceae), a new cycad from Thailand. Brittonia 51(1): 44-47.
Hill, K.D. and Stevenson, D.W. 1998 - 2006. The Cycad Pages. Available at: <a href="http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/index.html">http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/index.html</a>.

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

assessor

Bösenberg, J.D.

contributor

Lindstrom, A. & Hill, K.D.

evaluator

Donaldson, J.S.

Bösenberg, J.D. 2023. Cycas pranburiensis. The IUCN Red List of Threatened Species 2023: e.T42063A69155175. Accessed on 05 May 2026.