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Salix arbusculoides Andersson
Salix acutifolia; Salix daphnoides subsp acutifolia (Willd) Ahlfv; Littletree willow; Salix acutifolia auct non Hook; Salix humillima Andersson; Salix saskatchevana Seemen

Life   Plantae   Dicotyledoneae   Salicaceae   Salix

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Associates · map
FamilyScientific name @ source (records)
Melampsoraceae  Melampsora epitea @ BPI (7)

Melampsora ribesii-purpureae @ BPI (3)
Miridae  Monosynamma bohemanni @ AMNH_PBI (1)
Mycosphaerellaceae  Ramularia rosea @ BPI (2)
Rhytismataceae  Rhytisma salicinum @ BPI (1); 1100383B (1); 1100383A (1)

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=SAAR3 ---> https://plants.usda.gov/java/profile?symbol=SAAR3
https://plants.usda.gov/java/profile?symbol=SAAR3 ---> http://plants.usda.gov/core/profile?symbol=SAAR3
http://plants.usda.gov/core/profile?symbol=SAAR3 ---> https://plants.usda.gov/core/profile?symbol=SAAR3
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Salix arbusculoides Andersson
littletree willow

General Information
Symbol: SAAR3
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : AK   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
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   




Symbol Scientific Name
SAAC2 Salix acutifolia auct. non Hook.
SAHU3 Salix humillima Andersson
SAHUP Salix humillima Andersson var. puberula (Andersson) Andersson
SASA15 Salix saskatchevana Seemen


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 arbusculoides Andersson – littletree willow

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Alaska FACW

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Integrated Taxonomic Information System (SAAC2)
Integrated Taxonomic Information System (SAAR3)
Integrated Taxonomic Information System (SAHU3)
Integrated Taxonomic Information System (SAHUP)
Integrated Taxonomic Information System (SASA15)
Lady Bird Johnson Wildflower Center Native Plant Information Network (SAAR3)
Native American Ethnobotany (University of Michigan - Dearborn) (SAAR3)
USDA Forest Service Fire Effects Information System (SAAR3)



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 Plants Database, United States Department of Agriculture
   Top | See original

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
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FNA Vol. 7 Page 46, 99, 137 , 141 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

90. Salix arbusculoides Andersson, Monogr. Salicum. 147, plate 8, fig. 81. 1867.

Little-tree willow

Stems: branches gray-brown to red-brown, not glaucous, glabrous; branchlets red-brown, glabrous or puberulent. Leaves: stipules rudimentary on early ones, apex acute; petiole shallowly grooved adaxially, 3-11 mm, puberulent to glabrescent adaxially; largest medial blade very narrowly elliptic to elliptic, 38-78 × 7-18 mm, base cuneate or convex, margins slightly revolute, serrulate, apex acuminate, acute, or convex, abaxial surface glaucous (sometimes obscured by hairs), sparsely to densely long-silky, hairs (white, sometimes also ferruginous), straight, adaxial highly or slightly glossy, glabrous; proximal blade margins entire; juvenile blade yellowish green, very densely long-silky abaxially, hairs white, sometimes also ferruginous. Catkins flowering as or just before leaves emerge; staminate stout or slender, 17-43 × 5-10 mm, flowering branchlet 0-2.5 mm; pistillate densely to loosely flowered, stout to slender, 20-46 × 6-15 mm, flowering branchlet 0-6 mm; floral bract tawny or brown, 0.8-1.2 mm, apex convex to rounded, abaxially hairy, hairs straight or wavy. Staminate flowers: adaxial nectary oblong, 0.6-0.9 mm; filaments distinct; anthers purple turning yellow, ellipsoid to globose, 0.3-0.6 mm. Pistillate flowers: adaxial nectary oblong or ovate, 0.6-1 mm; ovary pyriform, beak gradually tapering to styles; ovules 16-18 per ovary; styles 0.3-0.5 mm. Capsules 4-6 mm. 2 n = 38.

Flowering mid May-early Jul. Stream margins, lakeshores, openings in white spruce forests, treed bogs, sedge fens, edges of alpine and arctic tundra; 0-2000 m; Alta., B.C., Man., N.W.T., Nunavut, Ont., Que., Sask., Yukon; Alaska.

Glands on leaf teeth of Salix arbusculoides are sometimes covered with fine crystals of sulphur, calcium, potassium, and silicon (R. Cooper, pers. comm.), indicating that they can function as hydathodes as well as resin glands.

Updated: 2019-08-19 08:10:33 gmt
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