Species Details
Juglans californica
Southern California black walnut
Download Report Calflora eFlora CCH CalPhotos
© 2020 Zoya Akulova |
© 2019 Michael Charters |
© 2021 Zoya Akulova |
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Scientific Name: Juglans californica Wats. |
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Common Name: Southern California black walnut |
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| Family: | Juglandaceae | |
| Element Code: | PDJUG02020 | |
| USDA Plants Symbol: | JUCA | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 4.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4 |
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State Rank: |
S4 |
| Other Status: | IUCN_NT; SB_CalBG/RSABG; SB_USDA |
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CRPR Changes: |
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| Add Date: | 1994-01-01 |
| Date Edited: | 2022-01-05 |
| Lifeform: perennial deciduous tree | ||||||||||||||
Blooming Period: Mar-Aug
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Elevation:
50 - 900 meters 165 - 2955 feet |
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General Habitats:
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| Microhabitat Details: alluvial | ||||||||||||||
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Microhabitat:
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Notes: Walnut forest is a much fragmented, rare, and declining vegetation community. Threatened by urbanization, 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. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 0 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 0 | 0 % |
| THREAT LIST: | ||
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| Total Occurrences: | 0 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 0 | ||||
| Presence: | |||||
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| Presumed Extant | 0 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Fresno (FRE), Kern (KRN), Los Angeles (LAX), Orange (ORA), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), Santa Barbara (SBA), Santa Clara (SCL), Ventura (VEN) |
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Quads: Name (Quad Code) Acton (3411842), Alamo Mountain (3411868), Alberhill (3311764), Alpine (3211677), Anaheim (3311778), Azusa (3411728), Bachelor Mtn. (3311751), Bald Mountain (3411978), Baldwin Park (3411718), Beaumont (3311688), Beverly Hills (3411814), Black Mtn. (3411867), Black Star Canyon (3311776), Blackburn Canyon (3311667), Bonsall (3311732), Borrego Palm Canyon (3311634), Burbank (3411823), Cabazon (3311687), Cajon (3411734), Calabasas (3411826), Camarillo (3411921), Canada Gobernadora (3311755), Canoga Park (3411825), Carpinteria (3411945), Casmalia (3412075), Cobblestone Mtn. (3411857), Condor Peak (3411832), Corona North (3311785), Corona South (3311775), Crystal Lake (3411737), Cucamonga Peak (3411725), Del Mar (3211782), Devils Heart Peak (3411858), Devore (3411724), Dulzura (3211667), Eagle Rest Peak (3411982), Earthquake Valley (3311614), El Cajon (3211678), El Cajon Mtn. (3211687), El Casco (3311781), El Monte (3411811), El Toro (3311766), Encinitas (3311713), Fallbrook (3311743), Fillmore (3411848), Fontana (3411714), Forest Falls (3411618), Glendora (3411727), Goleta (3411947), Green Valley (3411854), Guasti (3411715), Hollywood (3411813), Jamul Mountains (3211668), Julian (3311615), La Habra (3311788), Laguna Beach (3311757), Lake Elsinore (3311763), Lake Mathews (3311774), Lion Canyon (3411952), Lompoc Hills (3412054), Los Alamos (3412063), Los Angeles (3411812), Malibu Beach (3411816), Matilija (3411943), Mint Canyon (3411844), Moorpark (3411838), Mount San Antonio (3411736), Mt. Baldy (3411726), Mt. Wilson (3411821), Murrieta (3311752), Newbury Park (3411828), Newhall (3411845), Oat Mountain (3411835), Ojai (3411942), Old Man Mountain (3411954), Ontario (3411716), Orange (3311777), Orcutt (3412074), Pala (3311731), Pasadena (3411822), Piru (3411847), Pitas Point (3411934), Point Conception (3412044), Point Dume (3411817), Point Mugu (3411911), Prado Dam (3311786), Rancho Nuevo Creek (3411964), Rancho Santa Fe (3311712), Redlands (3411712), Riverside East (3311783), Riverside West (3311784), Rodriquez Mtn. (3311628), Romoland (3311762), San Bernardino North (3411723), San Bernardino South (3411713), San Dimas (3411717), San Fernando (3411834), San Pasqual (3311618), Santa Barbara (3411946), Santa Paula (3411931), Santa Paula Peak (3411941), Santa Rosa Hills (3412053), Santa Susana (3411836), Santa Ynez (3412051), Santiago Peak (3311765), Saticoy (3411932), Silverwood Lake (3411733), Simi (3411837), Sitton Peak (3311754), Solvang (3412052), Sunland (3411833), Sunnymead (3311782), Telegraph Peak (3411735), Temecula (3311742), Thousand Oaks (3411827), Topanga (3411815), Torrance (3311873), Tranquillon Mtn. (3412055), Triunfo Pass (3411818), Tubb Canyon (3311624), Val Verde (3411846), Valyermo (3411747), Van Nuys (3411824), Ventura (3411933), Viejas Mountain (3211676), Warm Springs Mountain (3411855), Waterman Mtn. (3411738), Wheeler Springs (3411953), Whitaker Peak (3411856), White Ledge Peak (3411944), Whittier (3311881), Wildomar (3311753), Winchester (3311761), Yorba Linda (3311787), Yucaipa (3411711) |
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Notes:
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Presumed Extant
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