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Salix scouleriana Barratt ex Hook.
SCOULERS WILLOW
Scouler Willow

Life   Plantae   Dicotyledoneae   Salicaceae   Salix


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FamilyScientific name @ source (records)
Bertiaceae  Bertia moriformis @ BPI (1)
Coccinellidae  Calvia quatuordecimguttata @ I_LB (1)
Corticiaceae  Cytidia salicina @ BPI (2)
Dermateaceae  Gloeosporium niveum @ BPI (1)

Gloeosporium @ BPI (1)

Marssonina populi @ BPI (1)

Marssonina @ BPI (1)
Diaporthaceae  Diaporthe salicella @ BPI (1)
Diatrypaceae  Diatrype bullata @ BPI (2)
Dothioraceae  Dothichiza @ BPI (1)
Erysiphaceae  Uncinula salicis @ BPI (14); 555409A (1); 555409B (1)
Hymenochaetaceae  Hymenochaete tabacina @ BPI (1)
Melampsoraceae  Melampsora abieti-capraearum @ BPI (23)

Melampsora bigelowii @ BPI (34)

Melampsora confluens @ BPI (16)

Melampsora epitea @ BPI (23)

Melampsora paradoxa @ BPI (4)

Melampsora ribesii-purpureae @ BPI (23)
Miridae  Malacocoris chlorizans @ AMNH_PBI (9)

Orthotylus dorsalis @ AMNH_PBI (3)

Psallus aethiops @ AMNH_IZC (10)

Psallus haematodes @ AMNH_PBI (4)
Mycosphaerellaceae  Ramularia rosea @ BPI (1)
Mytilinidiaceae  Lophium dolabriforme @ BPI (1)
Nectriaceae  Nectria cinnabarina @ BPI (2)

Nectria coccinea @ BPI (1)
Rhytismataceae  Rhytisma salicinum @ BPI (39)
Stereaceae  Stereum erumpens @ BPI (4)

Stereum hirsutum @ BPI (1)
Valsaceae  Cytospora chrysosperma @ BPI (1)

Cytospora @ BPI (1)

Valsa americana @ BPI (1)

Valsa minutella @ BPI (2)

Valsa salicina @ BPI (1)

Valsella salicis @ BPI (2)
_  Myxofusicoccum salicis @ BPI (2)

Patellea californica @ BPI (1)

Torula crustacea @ BPI (2)

Trimmatostroma americana @ BPI (2)

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Following modified from Virginia Tech Dendrology
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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=SASC ---> https://plants.usda.gov/java/profile?symbol=SASC
https://plants.usda.gov/java/profile?symbol=SASC ---> http://plants.usda.gov/core/profile?symbol=SASC
http://plants.usda.gov/core/profile?symbol=SASC ---> https://plants.usda.gov/core/profile?symbol=SASC
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 7 | Salicaceae | Salix

79. Salix scouleriana Barratt ex Hooker, Fl. Bor.-Amer. 2: 145. 1838.

Scouler's or mountain willow

Salix scouleriana var. poikila C. K. Schneider

Shrubs or trees, 1-10(-20) m. Stems: branches gray-brown, yellow-brown, or red-brown, not glaucous, glabrous or tomentose; branchlets yellow-green or yellow-brown, sparsely to densely villous, tomentose, or velvety. Leaves: stipules absent, rudimentary, or foliaceous on early ones, foliaceous on late ones, (1-16 mm), apex acute or acuminate; petiole convex to flat adaxially, 2-13 mm, velvety or villous adaxially; largest medial blade usually oblanceolate, sometimes narrowly elliptic, elliptic or obovate, 29-100 × 9-37 mm, 1.7-3.9 times as long as wide, base cuneate or convex, margins strongly to slightly revolute or flat, entire, remotely serrate, crenate, or sinuate, (glands submarginal or epilaminal), apex acuminate, convex, or rounded, abaxial surface glaucous, sparsely to densely short- to long-silky or woolly, hairs (white, sometimes also ferruginous), wavy or straight, adaxial slightly glossy, pilose or moderately densely short-silky, midrib velutinous or villous, (hairs white, sometimes also ferruginous); proximal blade margins entire, serrulate, or crenulate; juvenile blade reddish or yellowish green, sparsely to densely villous, short- or long-silky abaxially, hairs white, sometimes also ferruginous. Catkins flowering before leaves emerge; staminate stout or subglobose, 18-40.5 × 8-22 mm, flowering branchlet 0-4 mm; pistillate very densely flowered, slender or stout, 18-60(-90 in fruit) × 10-22 mm, flowering branchlet 0-8 mm; floral bract brown, black, or bicolor, 1.5-4.5 mm, apex rounded or acute, abaxially hairy, hairs straight. Staminate flowers: adaxial nectary oblong or square, 0.4-0.9 mm; filaments distinct, glabrous or hairy on proximal 1/2; anthers purple turning yellow, ellipsoid to shortly cylindrical, 0.7-1.2 mm. Pistillate flowers: adaxial nectary oblong or square, 0.2-0.8 mm, shorter than stipe; stipe 0.8-2.3 mm; ovary pyriform or obclavate, densely long-silky, beak slightly bulged below styles; ovules 10-18 per ovary; styles 0.2-0.6 mm; stigmas slenderly cylindrical, 0.4-0.82-1.04 mm. Capsules 4.5-11 mm. 2 n = 76.

Flowering late Feb-mid Jun. Dry conifer forests, mature woods on edges of streams and lakes, treed bogs, meadows, subalpine slopes, springs, pine barrens, openings in old burns, arroyos and disturbed sites, sandy, silty-clay, or gravelly, igneous substrates; 0-3500 m; Alta., B.C., Man., N.W.T., Sask., Yukon; Alaska, Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo.; Mexico (Chihuahua, Sonora).

Western Salix scouleriana and eastern S. humilis are closely related and are sometimes difficult to separate. Although there is an apparent range disjunction between them in western Manitoba, it may be a collecting gap. In general, S. scouleriana differs from S. humilis in being a taller shrub, sometimes even tree-like, with broader leaves and longer catkins, floral bracts, stigmas, and styles, but these quantitative characteristics all overlap. The apparent difference in anther length ( S. scouleriana 0.7-1.2 mm; S. humilis 0.4-0.6 mm) may be correlated with a difference in chromosome number. Salix scouleriana is tetraploid (Y. Suda and G. W. Argus 1968); S. humilis has been reported to be both diploid (Suda and Argus; L. Zsuffa and Y. Raj, unpubl.) and tetraploid (R. D. Dorn 1976). The latter count was from the same population as the one by Suda and Argus. Further chromosome counts are indicated.

See 77. Salix hookeriana for comparative descriptions.

Hybrids:

Salix scouleriana forms natural hybrids with S. hookeriana, S. planifolia , and S. pulchra .

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Salix+scouleriana&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+scouleriana&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 36
Query: SELECT * FROM img WHERE ready=1 and taxon like "Salix scouleriana%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 2222 0703 0005 0003 [detail]
© University of California Museum of Paleontology

Salix scouleriana
Salix scouleriana
Scouler Willow
ID: 8253 3202 3491 0086 [detail]
Charles Webber
© 1999 California Academy of Sciences

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 6259 3022 3484 0036 [detail]
© 1995 Saint Mary's College of California

Salix scouleriana
Salix scouleriana
Nuttall Willow
ID: 8120 3181 4901 0099 [detail]
Charles Webber
© 1998 California Academy of Sciences

Salix scouleriana
Salix scouleriana
Scowler's Willow
ID: 8253 3202 4148 0021 [detail]
Beatrice F. Howitt
© 1999 California Academy of Sciences

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 6259 3022 3484 0038 [detail]
© 1995 Saint Mary's College of California

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 6259 3022 3484 0037 [detail]
© 1995 Saint Mary's College of California

Salix scouleriana
Salix scouleriana
Fire Willow
ID: 1351 3151 4005 0082 [detail]
J. E.(Jed) and Bonnie McClellan
© 2005 California Academy of Sciences

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0716 0601 [detail]
© 2016 Jean Pawek

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0716 0602 [detail]
© 2016 Jean Pawek

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0716 0603 [detail]
© 2016 Jean Pawek

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0716 0604 [detail]
© 2016 Jean Pawek

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0716 0605 [detail]
© 2016 Jean Pawek

Salix scouleriana
Salix scouleriana
Willow, Pussywillow
ID: 0000 0000 0508 1500 [detail]
© 2008 Joseph Dougherty, M.D./ecology.org

Salix scouleriana
Salix scouleriana
Willow, Pussywillow
ID: 0000 0000 0508 1501 [detail]
© 2008 Joseph Dougherty, M.D./ecology.org

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0510 2489 [detail]
© 2010 Vernon Smith

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2133 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2134 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2135 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2136 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2137 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
Scouler's Willow
ID: 0000 0000 0112 2138 [detail]
© 2012 Aaron E. Sims

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0515 1893 [detail]
© 2015 Trent M. Draper

Salix scouleriana
Salix scouleriana
ID: 0000 0000 0515 1894 [detail]
© 2015 Trent M. Draper

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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