About California Black Walnut
- Plant Family: Juglandaceae
- Plant Type: Tree
- Height by Width: 20-60' H x 15-30' W
- Growth Habit: Tree, upright or multi-branched
- Deciduous/Evergreen: Winter deciduous
- Growth Rate: Moderate
- Sun Exposure: Full to part sun
- Soil Preference: Adaptable
- Water Requirements: Moderate to High
- Cold Hardy to: 20 F
- Flower Season: Spring
- Flower Color: Yellow
- Endangered?: List 4 / Red 1-2-3
- Distribution: Outer South Coast Range (Santa Lucia Mountains), Southern Transverse Range, Northern Peninsular Ranges (Santa Ana Mountains)
- Natural Habitat: Often near or on the edges of riparian zones in chaparral, cismontane woodland, and coastal sage scrub. Found on slopes, canyons, and in valleys. Elevation below 3000'