View source for Salix pyrifolia

{{Treatment/ID
|accepted_name=Salix pyrifolia
|accepted_authority=Andersson
|publications={{Treatment/Publication
|title=Monogr. Salicum,
|place=162, plate 8, fig. 93. 1867
|year=1867
}}
|common_names=Balsam willow
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Salix balsamifera
|authority=Barratt ex Andersson
}} {{Treatment/ID/Synonym
|name=Salix pyrifolia var. lanceolata
|authority=(Bebb) Fernald
}}
|hierarchy=Salicaceae;Salix;Salix subg. Vetrix;Salix sect. Hastatae;Salix pyrifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Salicaceae]]</div><div class="higher-taxon"><small>genus</small>[[Salix]]</div><div class="higher-taxon"><small>subgenus</small>[[Salix subg. Vetrix]]</div><div class="higher-taxon"><small>section</small>[[Salix sect. Hastatae]]</div><div class="higher-taxon"><small>species</small>[[Salix pyrifolia]]</div></div>
|volume=Volume 7
|mention_page=page 88, 101, 102, 116, 118, 127
|treatment_page=page 115
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>0.4–4 m. <b>Stems</b>: branches red-brown, not glaucous, (highly glossy), glabrous; branchlets red-brown, yellow-brown, or yellowish, (not or weakly glaucous), glabrous, (inner membranaceous bud-scale layer free, not separating from outer layer). <b>Leaves</b>: stipules (early deciduous), foliaceous or rudimentary on early ones, foliaceous on late ones, apex acute, convex, or rounded; petiole convex to flat, or shallowly grooved adaxially, 7–20 mm, glabrous or sparsely velvety adaxially; largest medial blade narrowly oblong, oblong, elliptic, or broadly elliptic, 30–103 × 19–40 mm, 1.5–3.4 times as long as wide, base cordate, subcordate, rounded or convex, margins flat or slightly revolute, serrulate, irregularly serrate, crenate, or sinuate, apex acute or acuminate, abaxial surface glaucous, glabrous, adaxial slightly or highly glossy, glabrous; proximal blade margins serrulate or entire; juvenile blade translucent, glabrous or pilose abaxially, hairs white. <b>Catkins</b>: staminate flowering just before leaves emerge, pistillate flowering as leaves emerge; staminate stout or slender, 18.5–63 × 7–15 mm, flowering branchlet 1–5 mm; pistillate loosely flowered, stout or slender, 25–85 × 8–20 mm, flowering branchlet 2–22 mm; floral bract tawny, 1–2.4 mm, apex acute or convex, abaxially sparsely to moderately densely hairy, hairs straight or wavy. <b>Staminate</b> flowers: adaxial nectary square or ovate, 0.3–0.5 mm; filaments distinct, glabrous or sparsely hairy basally; anthers yellow, (ellipsoid or shortly cylindrical), 0.5–0.8 mm. <b>Pistillate</b> flowers: adaxial nectary narrowly ovate or square, 0.3–0.7 mm, shorter than stipe; stipe 1.8–3.5 mm; ovary obclavate, glabrous, beak slightly bulged below styles; ovules 10–19 per ovary; styles 0.4–0.5 mm; stigmas flat, abaxially non-papillate with rounded tip, or 2 plump lobes, 0.2–0.23–0.32 mm. <b>Capsules</b> 7–8 mm. <b>2n</b> = 38.</span><!--

-->{{Treatment/Body
|phenology=Flowering May-mid Jun(-mid Jul in subalpine).
|habitat=Fens, wet lake and slough margins, treed bogs
|elevation=0-300 m (-1600 m in subalpine)
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Maine;Mich.;Minn.;N.H.;N.Y.;Vt.;Wis.
|discussion=<p><i>Salix pyrifolia</i> is characterized by juvenile leaves membranaceous and translucent, and largest medial leaves subcoriaceous, with abaxial surfaces reticulate, and with bases often cordate. Buds and foliage are reported to have a balsam-like fragrance.</p><!--
--><p>Hybrids:</p><!--
--><p><i>Salix pyrifolia</i> forms natural hybrids with <i>S. brachycarpa </i>var.<i> psammophila</i>. Hybrids with <i>S. discolor</i> have been reported (C. K. Schneider 1921; M. L. Fernald 1950) but no convincing specimens have been seen.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Salix pyrifolia
|author=
|authority=Andersson
|rank=species
|parent rank=section
|synonyms=Salix balsamifera;Salix pyrifolia var. lanceolata
|basionyms=
|family=Salicaceae
|phenology=Flowering May-mid Jun(-mid Jul in subalpine).
|habitat=Fens, wet lake and slough margins, treed bogs
|elevation=0-300 m (-1600 m in subalpine)
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Maine;Mich.;Minn.;N.H.;N.Y.;Vt.;Wis.
|reference=None
|publication title=Monogr. Salicum,
|publication year=1867
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_117.xml
|genus=Salix
|subgenus=Salix subg. Vetrix
|section=Salix sect. Hastatae
|species=Salix pyrifolia
}}<!--

-->[[Category:Treatment]][[Category:Salix sect. Hastatae]]