Juglans californica

Threats

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	JUGLANDALES	JUGLANDACEAE

Scientific Name:

Juglans californica

Species Authority:

S.Watson

Common Name/s:

English

–

Northern California Black Walnut, Southern California Black Walnut

Red List Category & Criteria:

Vulnerable A1c ver 2.3

Year Published:

1998

Annotations:

Needs updating

Assessor/s:

World Conservation Monitoring Centre

History:

1997

–

Rare (Walter and Gillett 1998)

Range Description:	The species may be divided into two varieties, vars. californica and hindsii, both endemic to California. Walnut forest is a much fragmented and declining habitat. There are just two or three stands remaining of var. hindsii, although it is widely naturalised in parts of California and was formerly cultivated as a rootstock for J. regia, with which it readily hybridizes.
Countries:	Native: United States (California)
Range Map:	Click here to open the map viewer and explore range.

Systems:	Terrestrial

Systems:

Terrestrial

Major Threat(s):	Threatened in several counties by urbanisation, grazing and possibly by the lack of natural reproduction.

Major Threat(s):

Threatened in several counties by urbanisation, grazing and possibly by the lack of natural reproduction.

Citation:	World Conservation Monitoring Centre 1998. Juglans californica. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012.
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