CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14sep 9-12-14
Status: record juglans_californica - Mon, Sep. 22, 2014 22:18 ET c
Juglans californica
common nameSouthern California black walnut
CalPhotos image
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Brother Alfred Brousseau © 1995 Saint Mary's College of California  Follow image link for photo data.
familyJuglandaceae
life form deciduous tree
CA Rare Plant Rank
List 4.2
CA-Endemic
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S3.2     S3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Counties, states, regions:
Los Angeles (LAX), Orange (ORA), Riverside (RIV), Santa Barbara (SBA), San Bernardino (SBD), San Diego (SDG), Ventura (VEN)
  • Green indicates one or more populations.
  • Yellow indicates uncertainty[?] or extirpation[*]. See list above. A complete key is on the Index by County page.
  • Pending additional quad-level data, only county data are being provided for List 4 plants.
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Coastal scrub (CoScr)/alluvial
blooming period Mar-Aug  
elevation range50 - 900 meters
notes
Walnut forest is a much fragmented, rare, and declining vegetation community. Threatened by urbanization and grazing, non-native plants, and possibly by lack of natural reproduction. Possibly threatened by hybridization with horticultural varieties of walnut. A synonym of J. californica var. californica in The Jepson Manual. See Proceedings of the American Academy of Arts and Sciences 10:349 (1875) for original description, and Southern California Botanists Special Publication No. 3, pp. 42-54 (1990) for additional information.
full nameJuglans californica Wats.
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym  JUCA Element Code  PDJUG02020
CalFlora
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web


Suggested citation: California Native Plant Society (CNPS). 2014. Inventory of Rare and Endangered Plants (online edition, v7-14sep). California Native Plant Society. Sacramento, CA. Accessed on Mon, Sep. 22, 2014 from http://www.cnps.org/inventory

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