Ontologia
Juglans hindsii

Juglans hindsii

(Jeps.) Jeps. ex R.E.Sm.

LCLR Monde (IUCN)
  1. Plante
  2. Tracheophyta
  3. Magnoliopsida
  4. Fagales
  5. Juglandaceae
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Pays · région · aire protégée · écorégion · biome

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Calcul du tissu écologique de Juglans hindsii.

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Liste rouge IUCN

LC · Préoccupation mineure→Stable
Évaluation complète
Évaluation
2020 · v3.1
Altitude
0 – 300 m
Profondeur
– m
État de la populationExpert
In what was considered the putative 'original, indigenous' range of the species, few trees are left and only one of the sites considered viable. Trees in these 'original sites' are also threatened by hybridisation and urbanisation (Potter et al. 2018). However the global range of the species is now considered wider and to be supporting a large population of California Black Walnut. Range and population size of the species has been naturally growing since the 1800's. The species shows spontaneous regeneration in riparian localities and other sites (Potter et al. 2018) and therefore subpopulation size is increasing at these sites. The tree has good natural regeneration and dispersal in California and Oregon (D. Potter pers. comm. 2019). Potter et al. (2018) found that 71.5% of wild Juglans hindsii are pure members of the species. Potter et al. (2018) also found no introgression with J. regia.

Menaces identifiées(1 menace classée CMP-IUCN)

  • 8_1_1
    Unspecified species
    UnknownUnknownFuture
Description complète des menacesExpert

Some localities of the species are exposed to threats such as urbanisation and agricultural development which can cause habitat disturbance and loss. These will be continuing threats in some sites for example in the 'original' occurrence of the species in Napa, Contra Costa and Sacramento (California Native Plant Society, Rare Plant Program. 2018) where a small number of trees remain. However these are not a major threat to the species. This tree is more abundant than in history, its range is expanding and there is spontaneous regeneration. There may be an emerging threat from Thousand Cankers Disease, a fungal infection which the species may be susceptible too. The impact of this pest on the population is not yet fully understood. 

Habitats préférentiels (classification IUCN)

  • 1_4Forest - Temperate
Mesures de conservation recommandéesExpert
This species is reported from 23 ex situ collections (BGCI 2019) and is planted as an ornamental.
Stress écologiques (1)Expert
  • 2_2Species disturbance
Usage & commerce (3)Expert
  • 11Other household goods
  • 13Pets/display animals, horticulture
  • 17Other (free text)
Priorités de recherche (1)Expert
  • 1_2Population size, distribution & trends
Niche IUCN globaleExpert

Royaumes biogéographiques

Nearctic

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Tree - largeTree - small
Références bibliographiques (12)Expert
  1. IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 19 March 2020).
  2. Calflora. 2019. Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. Berkeley, California Available at: <a href="https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=8943">https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=8943</a>. (Accessed: 07/11/2019).
  3. Sims, A.E. and Bittman, R. 2019. Rare Plant Status Review: <i>Juglans hindsii</i> Proposed Deletion from California Rare Plant Rank 1B.1, G1/S1. In: California Native Plant Society (ed.). California Native Plant Society and California Natural Diversity Database, California.
  4. California Native Plant Society. 2018. Inventory of Rare and Endangered Plants of California. California: April 04 Available at: <a href="http://www.rareplants.cnps.org/detail/938.html">http://www.rareplants.cnps.org/detail/938.html</a>.
  5. (USDA, NRCS) United States Department of Agriculture, Natural Resources Conservation Service. 2018. The PLANTS Database. Greensboro Available at: <a href="https://plants.usda.gov">https://plants.usda.gov</a>. (Accessed: 21 February 2018).
  6. NatureServe. 2018. <i>Juglans hindsii</i>. Available at: <a href="http://explorer.natureserve.org">http://explorer.natureserve.org</a>. (Accessed: June 2018).
  7. Potter, D., Bartosh, H., Dangl, G., Yang, J., Bittman, R., and Preece, J. 2018. Clarifying the Conservation Status of Northern California Black Walnut (<i>Juglans hindsii</i>) Using Microsatellite Markers. <i>MADRONO</i> 65(3): 131-140.
  8. BGCI. 2013. Plant search. London, Botanic Gardens Conservation International Available at: <a href="http://www.bgci.org/plant_search.php/">http://www.bgci.org/plant_search.php/</a>. (Accessed: 21/02/2013).
  9. Callahan, F. 2008. Hinds Walnut (<i>Juglans hindsii</i>) in Oregon. <i>Kalmiopsis - The Bulletin of the Native Plant Society of Oregon</i> 15.
  10. eFloras. 2008. Flora of North America. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA Available at: <a href="http://www.efloras.org/">http://www.efloras.org/</a>.
  11. Stone, D.E. 1997. Juglandaceae. <i>Flora of North America</i>, Missouri Botanical Garden.
  12. LA Times. 1995. Available at: <a href="http://articles.latimes.com/1995-10-08/news/mn-54825_1_black-walnut-trees">http://articles.latimes.com/1995-10-08/news/mn-54825_1_black-walnut-trees</a>.
Évaluateurs & contributeurs (3)Expert
assessor
Barstow, M.
contributor
Potter, D., Bittman, R., Bartosh, H., Stritch, L. & Preece, J.E.
evaluator
Potter, D., Bittman, R. & Bartosh, H.

Barstow, M. 2020. Juglans hindsii. The IUCN Red List of Threatened Species 2020: e.T62019703A62019705. Accessed on 05 May 2026.

Répartition mondiale (heatmap GBIF)Construction en cours

0 obs · 0 cellules
Construction par partitions temporelles GBIF0%

Source : GBIF — observations agrégées par hexagones 0.2° × 0.2° (~22km). Filtre qualité : précision coordonnée < 10 km. Coloration quantile (q50/70/90/99). Fond carte : OpenFreeMap · © OpenStreetMap.

Distribution mondiale

Calcul de la distribution GBIF· ~10–60 s

Phénologie

Calcul du calendrier d'apparition· ~5–30 s

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Observations & statuts

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Cartographie

GBIF Maps

Bibliographie

BHLOpenAlex
Note nomenclaturale & synonymesExpert

Note nomenclaturale

TAXREF v18 — INPN/MNHN

Synonymes (8)— redirigent vers cette page

  • Juglans californica f. quercina(Babc.) Rehder
  • Juglans californica subsp. hindsii(Jeps.) A.E.Murray
  • Juglans californica var. hindsiiJeps.
  • Juglans californica var. hindsiiS.Watson
  • Juglans californica var. quercinaBabc.
  • Juglans hindsii f. quercinifolia(Babc.) Rehder
  • Juglans hindsii var. quercina(Sarg.) Sarg.
  • Juglans hindsii var. quercinifoliaBabc.

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