Salix lasiolepis

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Salix lasiolepis
Salix lasiolepis(01).jpg
Conservation status

Secure (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Malpighiales
Family: Salicaceae
Genus: Salix
Species: S. lasiolepis
Binomial name
Salix lasiolepis
Salix lasiolepis range map 3.png
Natural range

Salix lasiolepis (arroyo willow) is a species of willow native to western North America.


The core range of the arroyo willow includes the California Coast Ranges and most of central northern California. It extends north into Oregon, and south just into Baja California.[1] S. lasiolepis var. lasiolepis is found in disjunct occurrences of moderate size in Idaho, the Mogollon Rim-White Mountains across Arizona's transition zone, the coastal ranges of Oregon, central Washington, two northern mountain regions of New Mexico, and two mountain regions of Coahuila.[1]


S. lasiolepis is a deciduous large shrub or small tree growing to 10 m (33 ft) tall. The shoots are yellowish brown and densely hairy when young. The leaves are 3.5–12.5 cm long and broadly lanceolate in shape. They are green above and glaucous green below. The undersides are covered with whitish or rusty hairs which gradually wear off during the summer. The flowers are arranged in yellow catkins 1.5–7 cm long which are produced in early spring.[2]


Salix lasiolepis is commonly found growing in canyons, along pond shores, and in swamps.[3][2]


  1. ^ a b Little, E. L. Atlas of United States Trees, Volume 3, Minor Western Hardwoods. US Government Printing Office. Library of Congress No. 79-653298. 1976. Map 174-SW: Salix lasiolepis.
  2. ^ a b Salix lasiolepis. The Jepson Manual.
  3. ^ Germplasm Resources Information Network: Salix lasiolepis

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