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Salix lasiolepis

Salix lasiolepis Benth.

Arroyo Willow

Salicaceae (Willow Family)


USDA Symbol: SALA6

USDA Native Status: L48 (N)

Usually a thicket-forming shrub with clustered stems; sometimes a small tree with slender, erect branches forming narrow, irregular crown.

The name "White Willow" may come from the light-colored bark and leaves with whitish lower surfaces. The scientific name, meaning "shaggy scale," refers to the white hairs on the scales of the flowers.


From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 30 feet tall.

Bloom Information

Bloom Color: Yellow , Green , Purple
Bloom Time: Jan , Feb , Mar , Apr , May , Jun


USA: AZ , CA , ID , NM , NV , OR , TX , UT , WA
Native Distribution: Washington and Idaho south to S. California and New Mexico; also in N. Mexico; to 7500' (2286 m).
Native Habitat: Wet soils along streams and arroyos, or gullies, in valleys, foothills, and mountains.

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Salix lasiolepis in USDA Plants
FNA: Find Salix lasiolepis in the Flora of North America (if available)
Google: Search Google for Salix lasiolepis


Record Modified: 2023-05-16
Research By: TWC Staff

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