Northern California black walnut (Juglans hindsii) is a large, deciduous tree native to central and northern California. It often grows with a single, straight trunk, reaching heights of 30 to 60 feet with a broad, spreading crown. The tree produces smooth, brown nuts with thick shells and small edible nutmeats. It is commonly used as a rootstock for English walnut orchards worldwide, often hybridized as ‘Paradox’ (J. hindsii x J. regia).

With its deep taproot and resistance to frost, Northern California black walnut thrives in warm, sunny environments. Its leaves emerge late in spring, providing dense summer shade. The tree also supports wildlife, offering food and shelter for deer, squirrels, and various bird species.

While prized for its durable wood in furniture-making and gunstocks, it also serves as a beautiful shade tree in larger landscapes.