Ontologia

Xerophyta argentea

(Wild) L.B.Sm. & Ayensu

LCLR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Liliopsida
  4. Pandanales
  5. Velloziaceae
Pays · région · aire protégée · écorégion · biome

Pas d'interactions documentées pour cette espèce.

Liste rouge IUCN

LC · Préoccupation mineure?Inconnue
Évaluation complète
Évaluation
2018 · v3.1
Altitude
1325 – 2410 m
Profondeur
– m
État de la populationExpert

This species is known from 10 collections and 26 sight records. Mapaura (2002) recorded it as widespread within the Chimanimani Mountains. A population survey was conducted in 2016 in the Mozambican Chimanimani mountains, using a random stratified sampling method. Twenty quadrants were sampled in two 50 x 50 m macro plots. The total number of individuals was 72, with 52 mature individuals and 20 recruitment stage. Xerophyta argentea populations were observed as abundant (Shah 2016). The population data cannot be accurately extrapolated for the wider massif due to the lack of reliable absence data, but there are likely to be >10,000 individuals. The data collected in this survey provides a framework for monitoring number of individuals in the future. 

All collections to date are from the north of Chimanimani but it may in fact be more widespread across the massif. 

Menaces identifiées(1 menace classée CMP-IUCN)

  • 7_1_1
    Increase in fire frequency/intensity
    Negligible declinesMinority (<50%)Ongoing
Description complète des menacesExpert
Informal personal communication with local people and miners in the 2014 expedition raised concern of the species being used as a fuelwood by the illegal miners on the Mozambique side of the Chimanimani Plateau. However, this inferred threat was not confirmed in the 2016 expedition; there was no evidence of harvesting or damage to any individuals or sub-populations. The species was abundant on all visited sites in the high altitude areas of the Massif. 
Increased frequency of fire may be a threat to some areas of its habitat, however Xerophyta argentea is fire adapted and thus not likely to be significantly impacted by this threat.

Habitats préférentiels (classification IUCN)

  • 6Rocky areas (eg. inland cliffs, mountain peaks)★
Mesures de conservation recommandéesExpert

No specific conservation measures or management plan are in place for this species. It is recorded from the Chimanimani National Park in Zimbabwe and the Chimanimani National Reserve in Mozambique. Only the northernmost site, near Rotanda, is not within a protected area. Populations of Xerophyta argentea should be monitored, particularly in the accessible areas of the Chimanimani.

Actions de conservation (1)Expert
  • 1_1Site/area protection
Stress écologiques (2)Expert
  • 1_2Ecosystem degradation
  • 2_2Species disturbance
Priorités de recherche (3)Expert
  • 1_2Population size, distribution & trends
  • 3_1Population trends
  • 3_4Habitat trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or HerbShrub - small
Références bibliographiques (11)Expert
  1. Hyde, M.A., Wursten, B.T., Ballings, P., Dondeyne, S. and Coates Palgrave, M. 2018. Flora of Mozambique. Available at: <a href="http://www.mozambiqueflora.com">http://www.mozambiqueflora.com</a>.
  2. Hyde, M.A., Wursten, B.T., Ballings, P. and Coates Palgrave, M. 2018. Flora of Zimbabwe. Available at: <a href="http://www.zimbabweflora.co.zw">http://www.zimbabweflora.co.zw</a>.
  3. IUCN. 2018. The IUCN Red List of Threatened Species. Version 2018-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 15 November 2018).
  4. Timberlake, J.R., Wursten. B., Hadj-Hammou, J., Darbyshire, I., Mapaura, A. <i>et al. </i>. 2016. Botanical conservation across the Chimanimani Mountains. Unpublished report for the Critical Ecosystem Partnership Fund. Royal Botanic Gardens, Kew.
  5. Shah, T. 2016. Conservation Status of the Plants of the Chimanimani Mountains, Mozambique, based on four endemic species (unpublished master's thesis). University of Reading.
  6. 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.
  7. Gonçalves, A.E. 2009. Xerophyta. In: Flora Zambesiaca 12(2). In: Timberlake, J.R.; Martins, E.S. (ed.), <i>Flora Zambesiaca</i>, pp. 155-175. Royal Botanic Gardens, Kew, London.
  8. Dondeyne, S., Ndunguru, E., Rafael, P. and Bannerman, J. 2009. Artisanal mining in central Mozambique: Policy and environmental issues of concern. <i>Resources Policy</i> 34: 45-50.
  9. Mapaura, A. 2002. Endemic plant species of Zimbabwe. <i>Kirkia</i> 18(1): 117-148.
  10. Mapaura, A. and Timberlake, J.R. 2002. Zimbabwe. In: J.S. Golding (ed.), <i>Southern African Plant Red Data Lists</i>, pp. 157-182. Southern African Botanical Diversity Network Report No. 14. SABONET, Pretoria.
  11. Wild, H. 1964. The endemic species of the Chimanimani Mountains and their significance. <i>Kirkia</i> 4: 125-157.
Évaluateurs & contributeurs (4)Expert
assessor
Shah, T., Alves, M.T., Banze, A., Chelene, I., Darbyshire, I., Datizua, C., De Sousa, C., Langa, C., Matimele, H.A., Mtshali, H., Mucaleque, P.A., Odorico, D., Osborne, J., Rokni, S., Timberlake, J.R., Viegas, A. & Vilanculos, A.
evaluator
Raimondo, D.
facilitators
Rokni, S.
institutions
Royal Botanic Gardens, Kew & IUCN SSC Southern African Plant Specialist Group

Shah, T., Alves, M.T., Banze, A., Chelene, I., Darbyshire, I., Datizua, C., De Sousa, C., Langa, C., Matimele, H.A., Mtshali, H., Mucaleque, P.A., Odorico, D., Osborne, J., Rokni, S., Timberlake, J.R., Viegas, A. & Vilanculos, A. 2018. Xerophyta argentea. The IUCN Red List of Threatened Species 2018: e.T66177854A66177888. Accessed on 05 May 2026.

Répartition mondiale

Aucune observation géoréférencée avec précision suffisante (<10 km) dans GBIF pour cette espèce.

Consulter sur les bases externes

Observations & statuts

iNaturalist

Bibliographie

BHLOpenAlex
Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (1)— redirigent vers cette page

  • Vellozia argenteaWild

Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).