Veratrum mengtzeanum
O.Loes.
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Veratrum mengtzeanum.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
LC · Préoccupation mineure?Inconnue- Évaluation
- 2013 · v3.1
- Altitude
- 1200 – 4000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
There are at least 13 sites where V. mengtzeanum has been collected, represented by 26 herbarium specimens. Additional herbarium specimens have been observed within the same provinces as the georeferenced specimens used in the assessment, but it has been impossible to determine their exact localities. The overall population size is not known.
Chinese collections are generally old (1882 – 1939), and the most recent one was collected in 1973. No recent observations have been recorded, and the current status of these populations is unknown. Thai collections are more recent and they have been collected from only two sites: Doi Chiangdao and Phu Wae. There is a disjunction between the Chinese and Thai subpopulations. This species may occur in intermediate localities in Lao PDR and Myanmar, although a member of the editorial board of the Flore du Cambodge, Laos et Viêtnam confirmed that this taxon has not yet been recorded for these countries (M. Newman pers. comm.). There is also a disjunction between the Thai subpopulations of the two subspecies.
Chinese collections are generally old (1882 – 1939), and the most recent one was collected in 1973. No recent observations have been recorded, and the current status of these populations is unknown. Thai collections are more recent and they have been collected from only two sites: Doi Chiangdao and Phu Wae. There is a disjunction between the Chinese and Thai subpopulations. This species may occur in intermediate localities in Lao PDR and Myanmar, although a member of the editorial board of the Flore du Cambodge, Laos et Viêtnam confirmed that this taxon has not yet been recorded for these countries (M. Newman pers. comm.). There is also a disjunction between the Thai subpopulations of the two subspecies.
Menaces identifiées(1 menace classée CMP-IUCN)
3_2Mining & quarryingRapid DeclinesMinority (<50%)Future
Description complète des menacesTexte détaillé évaluation IUCNExpert
There are no known major threats to this species. At the subspecific level there is a plausible future threat to V. mengtzeanum ssp. phuwae from limestone extraction if the protected status of the locality is removed, but this only represents a small proportion of the overall range of the species.
Habitats préférentiels (classification IUCN)
1_4Forest - Temperate3_4Shrubland - Temperate3_7Shrubland - Subtropical/Tropical High Altitude4_4Grassland - Temperate4_7Grassland - Subtropical/Tropical High Altitude
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The subspecies phuwae is confined to the Doi Phu Ka National Park.
Stress écologiques (2)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Indomalayan
Systèmes (terrestre/eau douce/marin)
Terrestrial
Formes de croissance
Geophyte
Références bibliographiques (5)Sources scientifiques de l'évaluation IUCNExpert
- Trias-Blasi, A. and Suksathan, P. 2013. Delimitation in the <i>Veratrum metzeanum—V. chiengdaoense</i> complex (Melanthiaceae) in Thailand based on morphology, with commentary on conservation status. <i>Phytotaxa</i> 96(1): 54-62.
- IUCN. 2013. IUCN Red List of Threatened Species (ver. 2013.2). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 13 November 2013).
- Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. <i>Zookeys</i> 150: 117–126.
- IUCN. 2001. <i>IUCN Red List Categories and Criteria: Version 3.1.</i> Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK.
- Mulligan, G.A. and Munro, D.B. 1987. The biology of Canadian weeds. 79. <i>Veratrum viride</i> Ait. <i>Canadian Journal of Plant Science</i> 67: 777-786.
Évaluateurs & contributeurs (3)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Trias-Blasi, A.
contributor
Suksathan, P.
evaluator
Bachman, S.
Trias-Blasi, A. 2013. Veratrum mengtzeanum. The IUCN Red List of Threatened Species 2013: e.T47345828A47345831. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s