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Northern California Black Walnut
Juglans hindsii
  
About Northern California Black Walnut (Juglans hindsii) 13 Nurseries Carry This Plant Juglans hindsii, the Northern California Black Walnut is a large tree endemic to roughly circular area in California centered near Fresno and reaching the San Francisco Bay area. Some authorities (i.e., California Native Plant Society) describe this species as the subspecies Hindsii of the Southern California Black Walnut, J. californica (S. Watson). This article uses the The Jepson Manual.

Northern California Black Walnut, generally found in the northern half of the state, is a large tree with a single erect trunk, commonly without branches for 10 to 40 feet. Specimens commonly reach 5 to 6 feet in diameter near the base of the tree.

Unlike the Southern California Walnut, the angles of the leaf veins bear tufts of hair. The nut has a smooth, brown, thick shell containing a small edible nutmeat. It is commercially important as a rootstock for English walnut orchards all over the world, both on its own and as a parent to the J. hindsii x J. regia hybrid, commonly called 'Paradox.'

The wood of the Northern California Black Walnut is used for furniture-making and gunstocks because of its good working properties and beautiful grain patterns.
Plant Description
Plant Type
Plant Type
Tree

Size
Size
60 ft tall

Flower Color
Flower Color
White, Green

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Low, Moderate - High

Nurseries
Nurseries

Soil Drainage
Soil Drainage
Fast, Medium, Slow

Soil Description
Soil Description
Tolerates sand and clay soils

Common uses
Common uses
Bird Gardens

Propagation
Propagation?
For propagating by seed: 22.5 wks. stratification; soaking seeds first at 190°F for 1.5 to 2 min. first may reduce stratification time (USDA Forest Service 1974 ).

Sunset Zones
Sunset Zones?
4*, 5*, 6*, 7*, 8, 9, 10, 11, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Natural Setting
Site Type
Site Type
Slopes, canyons, valleys

Climate
Climate
Annual Precipitation: 9.4" - 78.8", Summer Precipitation: 0.14" - 1.49", Coldest Month: 36.8" - 55.2", Hottest Month: 63.3" - 80.7", Humidity: 0.09" - 29.78", Elevation: -7" - 6244"

Alternative Names
Botanical Names: Juglans californica var. hindsii;Juglans californica var. hindsii
Common Names: Hinds' Black Walnu, Northern California Walnut


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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