Salix glauca var. villosa

Andersson

Proc. Amer. Acad. Arts 4: 68. 1858.

IllustratedEndemic
Basionyms: Salix villosa D. Don ex Hooker Fl. Bor.-Amer. 2: 144. 1838,
Synonyms: Salix glauca var. glabrescens (Andersson) Hultén Salix pseudolapponum Bebb Salix wolfii var. pseudolapponum (Seemen) M. E. Jones
Treatment appears in FNA Volume 7. Treatment on page 91. Mentioned on page 86, 87, 90, 92, 109, 113.

Plants 0.3–2 m. Stems: branches yellowbrown or redbrown, villous, soon glabrescent; branchlets sparsely to densely villous or tomentose. Leaves: stipules sometimes marcescent, rudimentary or foliaceous on early ones, foliaceous on late ones, usually inconspicuous, narrowly elliptic to ovate, 0.9–2.8–8 mm, apex acute; petiole 3–14 mm, villous or pilose adaxially; largest medial blade (often amphistomatous), narrowly elliptic, elliptic, oblanceolate, or obovate, 29–80 × 8–24 mm, 2.2–3.9 times as long as wide, base sometimes rounded, apex acuminate, acute, or convex, abaxial surface pilose or moderately densely villous to glabrescent, hairs wavy, adaxial pilose or moderately densely villous to glabrescent; proximal blade margins entire or serrulate; juvenile blade sparsely to densely villous. Catkins: staminate 19–53 × 9–14 mm, flowering branchlet 1.5–20 mm; pistillate slender to stout, 19–56 (–60 in fruit) × 7–18 mm, flowering branchlet 2–27 mm; floral bract tawny, greenish, brown, or bicolor, 1–3.4 mm, apex convex to rounded, hairs wavy. Staminate flowers: abaxial nectary 0.1–0.8 mm, adaxial nectary oblong or ovate, 0.6–1.3 mm, filaments distinct, glabrous, or hairy on proximal 1/2. Pistillate flowers: adaxial nectary sometimes flask-shaped, 0.6–1.4 mm;, stipe 0.3–1.5 mm, ovary pyriform, densely villous or tomentose, beak gradually tapering to or slightly bulged below styles, ovules 6–15 per ovary, styles connate to distinct 1/2 their lengths, 0.4–1.4 mm, stigmas flat, abaxially non-papillate with rounded tip, or slenderly to broadly cylindrical, 0.2–0.4–0.64 mm. Capsules 5–8 mm. 2n = 114.


Phenology: Flowering mid May-late Jul.
Habitat: Riparian in subalpine and boreal forests, forest openings, sedge meadows, treed bogs, talus slopes, boulder fields, snowflush areas, alpine tundra, limestone shale, schist, granite, quartzite substrates
Elevation: 150-3800 m

Distribution

V7 100-distribution-map.gif

Alta., B.C., Man., N.W.T., Sask., Yukon, Colo., Mont., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Variety villosa is often confused with Salix orestera in the western United States. See discussion under 55. S. orestera.

Hybrids:

Variety villosa forms natural hybrids with Salix brachycarpa and S. boothii.

Selected References

None.

Lower Taxa

None.

"-0.64mm" is not declared as a valid unit of measurement for this property."-8mm" is not declared as a valid unit of measurement for this property.

... more about "Salix glauca var. villosa"
connate +  and distinct +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
long-silky or pilose +  and short +
moderately densely villous +  and glabrescent +
flask--shaped +, ovate +  and oblong +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
moderately densely villous;glabrescent +
dull +  and glossy +
red turning yellow +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Convex (?) +  and Rounded (?) +
George W. Argus +
Andersson +
rounded +
Salix villosa +
tapering +
serrulate +  and entire +
toothed +  and 2-fid +
persistent +
redbrown +  and yellowbrown +
glabrescent +  and villous +
tomentose +  and villous +
subglobose +  and globose +
0.2 cm2 mm <br />0.002 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.9 cm19 mm <br />0.019 m <br /> (5.6 cm56 mm <br />0.056 m <br />) +
pendulous +, spreading +  and erect +
globose +  and subglobose +
slender +  and stout +
0.7 cm7 mm <br />0.007 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Alta. +, B.C. +, Man. +, N.W.T. +, Sask. +, Yukon +, Colo. +, Mont. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
150-3800 m +
hairy +  and glabrous +
bicolor +, brown +, greenish +  and tawny +
0.1 cm1 mm <br />0.001 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
pistillate +  and staminate +
bisexual +  and unisexual +
spherical +
Riparian in subalpine and boreal forests, forest openings, sedge meadows, treed bogs, talus slopes, boulder fields, snowflush areas, alpine tundra, limestone shale, schist, granite, quartzite substrates +
straight +  and curved +
unbranched +  and spicate +
subterminal +  and axillary +
membranaceous +
amphistomatous +, hemiamphistomatous +  and hypostomatous +
2.7 cm27 mm <br />0.027 m <br /> (8.2 cm82 mm <br />0.082 m <br />) +
obovate +, oblong +, oblanceolate +  and elliptic +
0.6 cm6 mm <br />0.006 m <br /> (3.9 cm39 mm <br />0.039 m <br />) +
arranged +  and alternate +
marcescent +
deciduous +
29mm;80mm +
rudimentary +
obovate +, oblanceolate +  and elliptic +
0.1 cm1 mm <br />0.001 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
flat +  and revolute +
connate +  and distinct +
2-7[-10]-carpellate +
tomentose +  and villous +
pyriform +
glandular-dotted +
pilose +  and villous +
flat;convex;flat;convex +
0.3 cm3 mm <br />0.003 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Flowering mid May-late Jul. +
Proc. Amer. Acad. Arts +
overlapping +
distinct +
Illustrated +  and Endemic +
branched +, sympodial +, monopodial +  and branching +
decumbent;erect +
non-papillate +
cylindrical +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
caducous +  and persistent +
inconspicuous +  and rudimentary +
narrowly elliptic;ovate +
connate +  and distinct +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
persistent +  and deciduous +
ferruginous +  and white +
Salix glauca var. glabrescens +, Salix pseudolapponum +  and Salix wolfii var. pseudolapponum +
Salix glauca var. villosa +
Salix glauca +
variety +
rounded +
sympodial +, branching +  and heterophyllous +