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Juglans hindsii : ウィキペディア英語版 | Juglans hindsii
''Juglans hindsii'', commonly called the Northern California walnut and Hinds' black walnut, is a species of walnut tree endemic to Northern California. 〔( Jepson Herbarium (2013): ''Juglans hindsii'' )〕 〔(Calflora: ''Juglans hindsii'' ) . 10.1.2013〕 ==Distribution== The historical range of ''Juglans hindsii'' is from the San Joaquin Valley and Sacramento Valley to the Inner Northern California Coast Ranges and San Francisco Bay Area, in Northern California.〔 The tree grows in riparian woodlands, either in mono-species stands, or mixed with California oak species (''Quercus'' spp.) and Fremont cottonwood (''Populus fremontii'') trees. ;Conservation ''Juglans hindsii'' has only one confirmed native stand remaining. It is listed as Seriously Endangered on the California Native Plant Society Rare Plant Inventory. 〔(California Native Plant Society Rare Plant Inventory: ''Juglans californica'' ) . accessed 10.1.2013〕 The IUCN classification is a Vulnerable species. It is threatened by hybridization with orchard trees, urbanization, and habitat conversion to agriculture.
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