Cycas elongata
(Leandri) D.Yue Wang
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Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Cycas elongata.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères A2acd+4acd↘Décroissante- Évaluation
- 2023 · v3.1
- Altitude
- 50 – 200 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
Cycas elongata is locally common, forming separate colonies. The four main subpopulations are found at: northern Ninh Thuan province; west of Cam Ranh in Khan Hoa province; Song Cau district of Phu Yen province; and in the area of the Cu Mong Pass on the boundary between the Phu Yen and Binh Dinh provinces. Despite local abundance, it is estimated that ongoing declines due to loss of habitat and removal of plants for horticulture ranges between 60 and 80%
Menaces identifiées(5 menaces classées CMP-IUCN)
7_1_1Increase in fire frequency/intensityUnknownUnknownOngoing5_2_1Intentional use (species is the target)Slow, Significant DeclinesMajority (50-90%)Ongoing5_3_3Unintentional effects: (subsistence/small scale) [harvest]Slow, Significant DeclinesMajority (50-90%)Ongoing1_3Tourism & recreation areasFuture2_1_2Small-holder farmingOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Most of the woodland habitat has been cut for fuel and cleared for agriculture, and coastal areas have been targeted for future development. The species is also extremely popular for the ornamental plant trade in both Viet Nam and China and large numbers of plants are being removed from the wild. The sites are also subjected to periodic fires.
Habitats préférentiels (classification IUCN)
1_5Forest - Subtropical/Tropical Dry3_5Shrubland - Subtropical/Tropical Dry
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is protected in Nui Chua National Park at Ninh Thuan province, Viet Nam. It is listed in Appendix II of the CITES Appendices.
Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert
1_1Site/area protection4_3Awareness & communications
Stress écologiques (9)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_1Species mortality2_3_7Reduced reproductive success
Usage & commerce (2)Use & Trade — IUCNExpert
12Handicrafts, jewellery, etc.subsistance13Pets/display animals, horticultureinternationalnationalsubsistance
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).
- Osborne, R., Hill, K.D., Nguyen, H.T. and Phan Ke, L. 2007. <i>Cycads of Vietnam</i>. R. Osborne and W. van Eeden, Brisbane.
- Hill K.D., Nguyen, H.T. and Loc, P.K. 2004. The Genus <i>Cycas</i> (Cycadaceae) in Vietnam. <i>The Botanical review</i> 70(2): 134-193.
- Whitelock, L.M. 2002. <i>The Cycads</i>. Timber Press, Portland, Oregon.
- Osborne, R. and Nguyen, T.H. 2002. Focus on <i>Cycas elongata</i>. <i>Encephalartos</i> 72: 4-9.
- Jones, D.L. 2002. <i>Cycads of the World</i>. Smithsonian Institution Press, Washington, DC.
- 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 (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Bösenberg, J.D. & Nguyen, T.H.
evaluator
Donaldson, J.S.
Bösenberg, J.D. & Nguyen, T.H. 2023. Cycas elongata. The IUCN Red List of Threatened Species 2023: e.T42054A68900715. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s
Consulter sur les bases externes
Observations & statuts
Cartographie
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (3)— redirigent vers cette page
- Cycas pectinata var. elongataLeandri
- Cycas pectinata var. elongataBuch.-Ham.
- Epicycas elongata(Leandri) S.L.Yang ex de Laub.
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).