Northern California Black Walnut, Juglans hindsii

About Northern California Black Walnut (Juglans hindsii) 13 Nurseries Carry This Plant

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Juglans hindsii, the Hinds' Black Walnut, also called the Northern California Walnut, is a large tree (up to 60 feet tall) 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 . Juglans hindsii, generally found in the northern half of the state, is a large tree 30 to 60 feet high with a single erect trunk commonly without branches for 10-40 feet. Specimens commonly reach 5-6 feet in diameter near the base of the tree. The leaf is approximately 1 foot long, with 13-21 2-5 inch leaflets with dentate margins. Unlike the Southern California Walnut, the vein angles 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 Juglans hindsii, sometimes called Claro walnut is used for furniture making and gunstocks because of its good working properties and beautiful grain patterns.

Plant Description

Plant Type

Tree

Size

60 ft tall

Flower Color

White, Green

Flowering Season

Spring

Wildlife Supported

Butterflies & moths hosted ( 26 likely * ) SHOW ALL

White-lined Sphinx Hyles lineataHyles lineata

Polyphemus moth Antheraea polyphemusAntheraea polyphemus

Wandering Tiger Moth Spilosoma vestalisSpilosoma vestalis

Red-Humped Caterpillar Schizura concinnaSchizura concinna

Walnut Spanworm Moth Phigalia plumogerariaPhigalia plumogeraria

Filbertworm Cydia latiferreanaCydia latiferreana

The Penitent Catocala piatrixCatocala piatrix

Landscaping Information

Sun

Full Sun

Moisture

Low, Moderate - High

Nurseries

Carried by 13

Soil Drainage

Fast, Medium, Slow

Soil Description

Tolerates sand and clay soils

Common uses

Bird Gardens

Propagation?

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

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

Slopes, canyons, valleys

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: Northern California Walnut

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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

Northern California Black Walnut

Juglans hindsii

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Northern California Black WalnutJuglans hindsii

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Northern California Black Walnut

Juglans hindsii