The Alnus Viridis Subsp. Sinuata
is commonly known as Green Alder
, Mountain Alder
, Sitka Alder
, as well as Wavyleaf Alder< Go Back
Sitka alder is distributed from central Alaska and the Yukon Territory
south throughout British Columbia and western Alberta, and from
Washington to northwestern California, east to Idaho and central Montana
The scientific name of Sitka alder Alnus viridis
(Regel) Love & Loveis.
It is a subspecies of green alder is Alnus viridis
(Vill.) Lam. & DC.
Green alder is a circumpolar taxon distributed across America, Europe,
and Asia [18
]. It has been separated into the following two
(Aiton) Turill - mountain alder - northern
North America, including
northwestern N. America
(Regel) Love & Love - Sitka alder -
Intermediate forms between these subspecies are found where their ranges
This review is on Sitka alder.
Sitka alder is a seral shrub or small tree typically found on moist cool
sites within western redcedar (Thuja plicata), western hemlock (Tsuga
heterophylla), subalpine fir (Abies lasiocarpa), or Pacific silver fir
(A. amabilis) forests in the Cascades and Rocky Mountains
Published classification schemes listing Sitka alder as an indicator
species or as a dominant part of the vegetation in community types (cts)
or habitat types (hts) are presented below:
Area Classification Authority
OR,WA general veg. cts Franklin & Dyrness 1973
OR:Eagle Cap general veg. cts Cole 1982
OR:Monument Peak general veg. cts Aller 1965
wcID general veg. cts Curtis 1986
eWA,nID forest hts Daubenmire & Daubenmire 1968
ID forest hts Cooper & others 1987
cID grand fir/blue hkbry hts Steele & Geier-Hayes 1987
cID forest hts Steele & others 1981
MT forest hts Pfister & others 1977
< Go Back
Much of the information presented here is attributed to:
Uchytil, Ronald J. 1989. Alnus viridis subsp. sinuata.
In: Fire Effects Information System, [Online].
U.S. Department of Agriculture, Forest Service,
Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.