Common name: Northern California walnut, Hinds’ Black Walnut
Scientific name: Juglans hindsii
Chinese name: 北加州黑核桃、函兹核桃
Introduction：
Juglans hindsii is native to northern California but has since spread throughout the region via cultivation. It is used as a rootstock for J. regia, an ornamental, and for lumber where it is referred to as claro wood. J. hindsii is a deciduous tree 6-23 m tall with edible nuts, garden tolerant. Leaves 22-45 cm; leaflets 13-21, narrowly triangular to lanceolate, (5.6-)7.3-13 × (1-)1.9-2.8 cm, margins serrate; surfaces abaxially glabrous or with sparse glands, sparse glands and few capitate-glandular hairs scattered along major veins, fasciculate hairs conspicuously tufted in axils of proximal veins, sometimes also on adjacent blade and edges of midrib. The nuts ovoid to ovoid-globose, 2.4-3.2 cm, smooth or nearly so or shallowly and indistinctly ridged or grooved. J. hindsii tolerates sand, clay and seasonal flooding.
