IUCN threat status:

Vulnerable (VU)


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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.


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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