Western Mountain Ash

More info for the terms: shrub, tree

western mountain-ash
Pacific mountain-ash
Sitka mountain-ash


TAXONOMY:
The scientific name of western mountain-ash is Sorbus
sitchensis M. Roemer [16,18,24,39]. Varieties are [16,20,37]:

Sorbus sitchensis M. Roem. var. grayi (Wenzig) C.L. Hitchc., western mountain-ash
Sorbus sitchensis M. Roem. var. sitchensis, Sitka mountain-ash

Western mountain-ash hybridizes with Greene's mountain-ash (S. scopulina) [39].


LIFE FORM:
Tree, Shrub

FEDERAL LEGAL STATUS:
No special status

OTHER STATUS:
NO-ENTRY




DISTRIBUTION AND OCCURRENCE
SPECIES: Sorbus sitchensis
GENERAL DISTRIBUTION:
Western mountain-ash is distributed from Alaska south along the Pacific
Coast and through the Cascade Range to northern California and east to
northern Idaho and northwestern Montana [16,24,39].

More info for the term: forest

Western mountain-ash is distributed from Alaska south along the Pacific
Coast and through the Cascade Range to northern California and east to
northern Idaho and northwestern Montana [16,24,39].



Distribution of western mountain-ash. 1976 USDA, Forest Service map digitized by Thompson and others [40].

More info for the terms: shrub, tree

Tree, Shrub

Foliar glyphosate and broadcast 2,4-D applications caused severe
injury to western mountain-ash in field experiments [28].

Western mountain-ash may produce allelopathic substances that inhibit
Douglas-fir (Pseudotsuga menziesii) seedlings [30].

More info on this topic.

Western mountain-ash flowers from June to July. Fruits ripen from
September to October and persist through late winter [14,39].

More info for the term: secondary colonizer

Initial-offsite colonizer (off-site, initial community)
Secondary colonizer - off-site seed

The scientific name of western mountain-ash is Sorbus
sitchensis M. Roemer [16,18,24,39]. Varieties are [16,20,37]:

Sorbus sitchensis M. Roem. var. grayi (Wenzig) C.L. Hitchc., western mountain-ash
Sorbus sitchensis M. Roem. var. sitchensis, Sitka mountain-ash

Western mountain-ash hybridizes with Greene's mountain-ash (S. scopulina) [39].