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Salix barrattiana Hook.
BARRATTS WILLOW
Life   Plantae   Dicotyledoneae   Salicaceae   Salix


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Salix barrattiana Hook.
Barratt's willow


General Information
Symbol: SABA4
Group: Dicot
Family: Salicaceae
Duration: Perennial
Growth Habit : Shrub
Native Status : AK   N
CAN   N
L48   N
Data Source and Documentation
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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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Synonyms

Symbol Scientific Name
SAAL15 Salix albertana Rowlee
SABAA2 Salix barrattiana Hook. var. angustifolia Andersson
SABAL2 Salix barrattiana Hook. var. latifolia Andersson
SABAM Salix barrattiana Hook. var. marcescens Raup

Classification

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 barrattiana Hook. – Barratt's willow

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Alaska FACW
Arid West FACW
Western Mountains, Valleys, and Coast FACW

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Integrated Taxonomic Information System (SABA4)
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Native Plants Network (SABA4)
USDA Forest Service Fire Effects Information System (SABA4)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

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 Vol. 7 Page 5, 23, 98, 105, 111, 114, 115, 145 , 148 , 149 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

97. Salix barrattiana Hooker, Fl. Bor.-Amer. 2: 146, plate 181. 1838.

Barratt's willow

Salix barrattiana var. marcescens Raup

Shrubs, 0.3-1.5 m. Stems: branches red-brown, not or weakly glaucous, glabrous or villous in patches; branchlets red-brown or violet, moderately densely and coarsely villous, (bud-scale oily). Leaves: stipules (sometimes marcescent), foliaceous, (resinous, 1.5-7.5 mm), apex acute; petiole shallowly grooved, or convex to flat adaxially, 4-15 mm, villous or puberulent adaxially, (weakly ventricose around floral buds); largest medial blade narrowly to broadly elliptic, oblanceolate, or obovate, 35-95 × 10-29 mm, 2.2-4.2(-5) times as long as wide, base usually convex, rounded, or cuneate, sometimes cordate, margins flat, entire, apex acute, convex, or acuminate, abaxial surface not glaucous, moderately to very densely long-silky tomentose to glabrescent, hairs wavy, adaxial slightly glossy, sparsely villous or pubescent to glabrescent; proximal blade margins entire; juvenile blade color sometimes obscured by hairs, very densely long-silky abaxially, hairs white. Catkins flowering before leaves emerge; staminate stout or subglobose, 20-57 × 13-18 mm, flowering branchlet 0-2 mm; pistillate densely flowered, slender to stout, 28-92(-105 in fruit) × 12-19 mm, flowering branchlet 0-5 mm; floral bract brown or black, 2.8-5.2 mm, apex acute to convex, abaxially hairy, hairs straight. Staminate flowers: adaxial nectary narrowly oblong to oblong, 0.4-1.8 mm; filaments distinct; anthers yellow or purple turning yellow, ellipsoid or shortly cylindrical, 0.4-0.6 mm. Pistillate flowers: adaxial nectary narrowly oblong to oblong, 0.6-1.3 mm; stipe 0.2-0.6 mm; ovary pyriform, (hairs refractive), beak gradually tapering to styles; ovules 16-21 per ovary; styles 0.6-1.8 mm; stigmas 0.28-0.47-0.64 mm. Capsules 4.5-6 mm.

Flowering late May-late Jul. Moist to wet gravel bars, fans and terraces, stream banks, shrub fens, thickets and meadows, wet alpine tundra, often on limestone substrates; 150-3200 m; Alta., B.C., N.W.T., Yukon; Alaska, Mont., Wyo.

Salix barrattiana has stipules and buds that are typically strongly oily or resinous, staining pressing sheets yellow. The Montana and Wyoming records are the basis for a conservation assessment by J. A. R. Ladyman (www.fs.fed.us/r2/projects/scp/assessments/salixbarrattiana.pdf). The Wyoming population is represented by three staminate specimens. Their buds and stipules are not conspicuously oily and further verification is needed.

Salix barrattiana is placed here in sect. Villosae , but it is morphologically similar also to members of sect. Lanatae . The most conspicuous difference is its hairy ovaries. Inconsistent phenetic clustering of this species (G. W. Argus 1997) shows the difficulty in determining its sectional placement. The suggestion that it may link the two sections by hybridization and introgression, or by alloploidy, still remains to be assessed.

Hybrids:

Salix barrattiana forms natural hybrids with S. barclayi, S. commutata , and S. pseudomyrsinites .

Salix barrattiana × S. commutata : This hybrid, known from Alberta and the Yukon, usually resembles S. barrattiana , but ovaries are hairy in patches, stipes at ca. 1 mm are long for that species, and buds and stipules are not oily. A British Columbia specimen has glabrous ovaries and oily stipules.

Salix barrattiana × S. pseudomyrsinites is a rare putative hybrid that combines characteristics of the two parents.

Updated: 2019-10-18 02:32:11 gmt
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