Vascular Plants - Betulaceae - Alnus:
Alnus viridis ssp. sinuata
Sitka alder, wavy-leaved alder 
Blooms: May - July
Habit: tree,shrub
Duration: perennial
Origin: Native
Distribution: Alaska to northern California, east through Washington and Oregon to Montana
Habitat: Moist areas, low to high elevations
Accepted Name:
Alnus viridis (Chaix) DC. ssp. sinuata (Regel) A.& D. Love
Synonyms:
Alnus alnobetula (Ehrh.) K. Koch p.p.
Alnus crispa (Ait.) Pursh
Alnus crispa (Ait.) Pursh ssp. laciniata Hultén
Alnus crispa (Ait.) Pursh ssp. sinuata (Regel) Hultén
Alnus sinuata (Regel) Rydb.
Alnus sitchensis (Regel) Sargent
Alnus viridis (Chaix) DC. var. sinuata Regel
Alnus viridis (Chaix) DC. var. sinuata Regel
Duschekia sinuata (Regel) Pouzar

Treated in Flora of the PNW as:
Alnus sinuata
Additional Resources:

PNW Herbaria Specimens: View list of all Alnus viridis ssp. sinuata specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Alnus viridis ssp. sinuata specimens in the WTU Herbarium database.

Washington Flora Checklist: Alnus viridis ssp. sinuata treatment.

E-Flora BC: Alnus viridis ssp. sinuata atlas page.

CalPhotos: Alnus viridis ssp. sinuata images.

USDA Plants Database: Alnus viridis ssp. sinuata.
Additional photographs of Alnus viridis ssp. sinuata:
(click on a thumbnail to view larger photo)

Clayton J. Antieau, 1989

Clayton J. Antieau, 1992

Clayton J. Antieau, 1995

Jim Riley

H. Tim Gladwin, 1982

H. Tim Gladwin, 1987

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, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

Paul Slichter, 2009

Paul Slichter, 2009

Ben Legler, 2011

Ben Legler, 2011

Ben Legler, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2011

Ron Bockelman, 2010

Ron Bockelman, 2011

Regina Johnson, 2013

Regina Johnson, 2013

Brian Luther, 2009

Brian Luther, 2009

Susan McDougall, 2014

Susan McDougall, 2014

Robert L. Carr, 2012

Robert L. Carr, 2012

Robert L. Carr, 2012

Robert L. Carr, 2012

Robert L. Carr, 2012

Robert L. Carr, 2012
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