Vascular Plants - Salicaceae - Salix:
Salix prolixa
Page Author: David Giblin
MacKenzie's willow 
Blooms: April-June
Habit: tree,shrub
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Widely distributed throughout Washington; British Columbia to California, east to Newfoundland and Virginia.
Habitat: Along streams in the lowlands to lower valleys in the mountains.
Accepted Name:
Salix prolixa Anderss.
Synonyms:
Salix cordata Muhl.
Salix cordata Muhl. var. mackenzieana Hook.
Salix eriocephala Michx. ssp. mackenzieana (Hook.) Dorn
Salix eriocephala Michx. var. mackenzieana (Hook.) Dorn
Salix mackenzieana (Hook.) Barratt ex Anderss.
Salix mackenzieana (Hook.) Barratt ex Anderss. var. macrogemma Ball
Salix rigida Muhl.
Salix rigida Muhl. ssp. mackenzieana (Hook.) E. Murr.
Salix rigida Muhl. var. mackenzieana (Hook.) Cronq.
Salix rigida Muhl. var. macrogemma (Ball) Cronq.

Treated in Flora of the PNW as:
Salix rigida vars. mackenzieana, macrogemma
Additional Resources:

PNW Herbaria Specimens: View list of Salix prolixa specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Salix prolixa specimens in the WTU Herbarium database.

Washington Flora Checklist: Salix prolixa treatment.

E-Flora BC: Salix prolixa atlas page.

CalPhotos: Salix prolixa images.

USDA Plants Database: Salix prolixa.
Additional photographs of Salix prolixa:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011

G. D. Carr, 2011
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Washington Native Plant Society
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