Home/Species/ Mackenzie's Willow

Salix prolixa

Anderss.

Mackenzie's Willow

G5Secure Found in 1 roadless area NatureServe Explorer →

G5SecureGlobal Rank

Least concernIUCN

Identity

Unique IDELEMENT_GLOBAL.2.144046

Element CodePDSAL022D0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

IUCNLeast concern

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderSalicales

FamilySalicaceae

GenusSalix

Synonyms

Salix eriocephala var. mackenzieana(Hook.) Dorn.Salix mackenzieana(Hook.) Barratt ex Anderss.

Other Common Names

MacKenzie's willow (EN) Saule de Mackenzie (FR)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank MethodExpertise without calculation

Review Date2015-09-22

Change Date1991-08-08

Range Extent>2,500,000 square km (greater than 1,000,000 square miles)

Rank Reasons

Widespread in western and northern continental North America, with thousands of occurrences.

Range Extent Comments

Alaska to California, east to northeastern Canada and south to Virginia.

Ecology & Habitat

Habitat

Riverine bars and flats.

Other Nations (2)

United StatesNNR

Province	Rank	Native
Alaska	S1	Yes
California	SNR	Yes
Utah	SNR	Yes
Washington	SNR	Yes
Wyoming	SNR	Yes
Oregon	SNR	Yes
Nevada	S3	Yes
Montana	SNR	Yes
Idaho	SNR	Yes

CanadaN5

Province	Rank	Native
Alberta	S3	Yes
British Columbia	S5	Yes
Yukon Territory	S3	Yes
Northwest Territories	SNR	Yes

Plant Characteristics

Economic Value (Genus)Yes

Roadless Areas (1)

California (1)

Area	Forest	Acres
Middle Fork	Plumas National Forest	29,278

References (3)

Flora of North America Editorial Committee (FNA). 2010. Flora of North America north of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Little, E.L., Jr. 1979. Checklist of United States trees (native and naturalized). Agriculture Handbook No. 541. U.S. Forest Service, Washington, D.C. 375 pp.