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Salix arctophila Cockerell ex A. Heller
Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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FamilyScientific name @ source (records)
Melampsoraceae  Melampsora abieti-capraearum @ BPI (1)

Melampsora epitea @ BPI (1)
Rhytismataceae  Rhytisma salicinum @ BPI (3)

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Salix arctophila Cockerell ex A. Heller
northern willow

Image of Salix arctophila

General Information
Symbol: SAAR6
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : AK   N
GL   N
L48   N
Data Source and Documentation
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image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


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Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 604. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .



Symbol Scientific Name
SAAR4 Salix arctica Liebm., non Pall.
SAARL Salix arctophila Cockerell ex A. Heller var. lejocarpa (Andersson) C.K. Schneid.
SAGRL Salix groenlandica Lundstr. var. lejocarpa (Andersson) Lange
SAGR12 Salix groenlandica Lundstr., non Heer


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Dilleniidae
Order Salicales
Family Salicaceae – Willow family
Genus Salix L. – willow
Species Salix arctophila Cockerell ex A. Heller – northern willow

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Maine Arctic willow Endangered

Wetland Status

Interpreting Wetland Status

North America
Alaska OBL
Northcentral & Northeast FACW

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Integrated Taxonomic Information System (SAAR4)
Integrated Taxonomic Information System (SAAR6)
Integrated Taxonomic Information System (SAARL)
Integrated Taxonomic Information System (SAGR12)
Integrated Taxonomic Information System (SAGRL)
Lady Bird Johnson Wildflower Center Native Plant Information Network (SAAR6)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

34. Salix arctophila Cockerell ex A. Heller, Cat. N. Amer. Pl. ed. 3. 89. 1910.

Northern willow

Salix arctophila var. lejocarpa (Lange) C. K. Schneider; S. groenlandica Lundström var. lejocarpa Lange

Plants 0.03-0.15 m, (dwarf), forming clones by layering. Stems prostrate, long-trailing; branches yellow-brown, red-brown, or green-brown, glabrous; branchlets yellow-green or yellow-brown to red-brown, (sometimes weakly glaucous), glabrous, (inner membranaceous bud-scale layer free, not separating from outer layer). Leaves: stipules rudimentary, absent, or foliaceous on early ones, foliaceous or rudimentary on late ones; petiole 3-7.8-15 mm; largest medial blade hypostomatous or hemiamphistomatous, elliptic, obovate, broadly elliptic, broadly obovate, subcircular, or oblanceolate, 15-31-60 × 6.5-16-35 mm, 1.2-3-4.3 times as long as wide, base cuneate, convex, or rounded, margins slightly revolute, inconspicuously crenulate or entire, apex usually acute or convex, sometimes rounded, abaxial surface glaucous, glabrous, adaxial slightly or highly glossy, glabrous; proximal blade margins entire or serrulate; juvenile blade glabrous. Catkins: staminate 19-54 × 7-16 mm, flowering branchlet 4-20 mm; pistillate densely to moderately densely flowered, slender to subglobose, 30-79(-130 in fruit) × 10-20 mm, flowering branchlet 8-57 mm; floral bract brown, black, or bicolor, 0.8-2.4 mm, apex rounded or acute, entire, abaxially densely hairy, hairs straight. Staminate flowers: abaxial nectary absent, adaxial nectary oblong, square, narrowly oblong, or ovate, 0.4-1 mm; filaments distinct or connate less than 1/2 their lengths, glabrous, or hairy on proximal 1/2; anthers ellipsoid or long-cylindrical, 0.5-0.7 mm. Pistillate flowers: abaxial nectary absent, adaxial nectary oblong or narrowly oblong, 0.5-0.9 mm, shorter than stipe; stipe 0.8-1.4 mm; ovary pyriform or obclavate, pubescent or short-silky, (refractive), hairs (white, grayish, or ferruginous), crinkled, often refractive, ribbonlike, beak gradually tapering to styles; ovules 8-16 per ovary; styles connate or distinct 1/2 their lengths, 0.6-1.4 mm; stigmas slenderly or broadly cylindrical, 0.24-0.47-0.72 mm. Capsules 5-9 mm. 2 n = 76.

Flowering late May-late Jul. Arctic-alpine, subarctic, hummocks in wet, mossy, grass or sedge meadows, margins of streams or ponds, among granite boulders, on alluvial plains, sometimes in snowbeds; 40-600 m; Greenland; Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Sask., Yukon; Alaska, Maine.

Salix arctophila occurs in western Greenland.


Salix arctophila forms natural hybrids with S. arctica, S. glauca var. cordifolia , and S. uva-ursi .

Salix arctophila × S. glauca var. cordifolia : Plants with villous leaves and moderately densely hairy branchlets and branches suggest this hybrid. Putative hybrids are rare but have been seen from Kuujjuaq and Ivujivik, Quebec (G. W. Argus, unpubl.), and are reported to be common in West Greenland (T. W. Böcher 1952).

Salix arctophila × S. uva-ursi is a rare hybrid. The plants often have ovaries with patches of hairs, some of which are ribbonlike, as in S. arctophila , but their habit is compact, as in S. uva-ursi , rather than long-trailing as in S. arctophila . Some specimens are infertile and are evidently hybrids, but there is little to confirm S. uva-ursi as the second parent. N. Polunin (1940b) also expressed some uncertainty about plants intermediate between S. arctophila and S. uva-ursi , and A. K. Skvortsov (1971) discounted this hybrid but noted that there were a few somewhat doubtful specimens.

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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Salix+arctophila&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Salix+arctophila&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Query: SELECT * FROM img WHERE ready=1 and taxon like "Salix arctophila%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

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Salix arctophila
Salix arctophila
ID: 0000 0000 0710 0104 [detail]
© 2010 Louis-M. Landry

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