View source for Salix caprea

{{Treatment/ID
|accepted_name=Salix caprea
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 1020. 1753
|year=1753
}}
|common_names=Goat or hoary willow
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Salicaceae;Salix;Salix subg. Vetrix;Salix sect. Cinerella;Salix caprea
|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. Cinerella]]</div><div class="higher-taxon"><small>species</small>[[Salix caprea]]</div></div>
|volume=Volume 7
|mention_page=page 94, 132, 133, 149
|treatment_page=page 131
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, 8–15 m. <b>Stems</b>: branches brownish, not glaucous, pubescent to glabrescent, (peeled wood smooth or striate, striae sparse, to 6 mm); branchlets yellow-brown or gray-brown, sparsely to densely villous, velvety, or pubescent. <b>Leaves</b>: stipules rudimentary on early ones, foliaceous on late ones, apex acute or convex; petiole convex to flat adaxially, 7–25 mm, tomentose to glabrescent adaxially; largest medial blade narrowly elliptic, broadly elliptic, oblanceolate, obovate, or broadly oblong, 50–130 × 25–80 mm, 2–3 times as long as wide, base cuneate or convex, margins slightly revolute, entire, crenate, or sinuate, (glands submarginal or epilaminal), apex acuminate or convex, abaxial surface glaucous, sparsely tomentose or pubescent, hairs erect, wavy, adaxial dull or slightly glossy, sparsely pubescent; proximal blade margins entire; juvenile blade green, densely tomentose abaxially, hairs white, sometimes also ferruginous. <b>Catkins</b> flowering before leaves emerge; staminate subglobose or globose, 16–39 × 12–30 mm, flowering branchlet 0–3 mm; pistillate densely flowered, stout or subglobose, 27–64 × 10–25 mm, flowering branchlet 0–7 mm; floral bract dark brown or black, 2–4 mm, apex acute or rounded, abaxially hairy, hairs (white), straight. <b>Staminate</b> flowers: adaxial nectary oblong or square, 0.4–0.7 mm; filaments distinct, glabrous; anthers yellow, ellipsoid or shortly cylindrical, 0.7–1.1 mm. <b>Pistillate</b> flowers: adaxial nectary oblong, narrowly oblong, or square, 0.4–0.9 mm, shorter than stipe; stipe 2–2.5 mm; ovary pyriform, densely short-silky, beak gradually tapering to styles; ovules 12–14 per ovary; styles 0.3–0.6 mm; stigmas slenderly cylindrical, 0.4–0.55–0.6 mm. <b>Capsules</b> 6–12 mm. <b>2n</b> = 38.</span><!--

-->{{Treatment/Body
|phenology=Flowering mid Mar-mid Jun.
|habitat=Thickets and roadsides
|elevation=20-4600 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Ill.;Md.;Mass.;Mich.;Nebr.;N.Y.;N.C.;Ohio;Pa.;Wash.;Europe.
|introduced=true
|discussion=<p>Hybrids:</p><!--
--><p><i>Salix ×smithiana</i> Willdenow: <i>S. caprea</i> × <i>S. viminalis</i> is an introduced European hybrid commonly naturalized in eastern Canada (New Brunswick, Newfoundland, Nova Scotia, and Prince Edward Island), where it was introduced for coarse basketry. Only pistillate specimens are known and seed-set has not been noted. Its spread is apparently by cultivation and stem fragmentation. It is characterized by: shrubs or trees, 2–10 m; branches yellow-brown, brownish, or gray-brown, pubescent to glabrescent, ± brittle at base, peeled 3–5 year-old branches smooth or striate, striae few, 0–6 mm; branchlets not glaucous, moderately densely pubescent; largest medial leaf blades very narrowly elliptic, narrowly elliptic, or narrowly oblong, 2.8–4.9(–6.4) times as long as wide, margins entire or sinuate, adaxial surfaces pubescent; catkins flowering before leaves emerge; stipes 0.9–2 mm; ovaries pyriform to obclavate, moderately to very densely short-silky; styles 0.5–1.2 mm; stigmas slenderly cylindrical, lobes 0.6–1.2 mm; and capsules 5–7 mm.</p><!--
--><p>Hybrids <i>Salix caprea</i> × <i>S. viminalis</i> and <i>S. cinerea</i> × <i>S. viminalis</i> are commonly recognized in North American floras. They are difficult to separate and their nomenclature is confusing. I am following G. Larsson (1995), who typified <i>S. ×smithiana</i> and cited S. ×sericans (formerly <i>S. cinerea</i> × <i>S. viminalis</i>) and <i>S. caprea</i> × <i>S. viminalis</i> as synonyms. These two <i>S. viminalis</i> hybrids are very similar. <i>Salix caprea</i> × <i>S. viminalis</i> has wood with striae 2–6 mm and leaves usually broadest in the middle; <i>S. cinerea</i> × <i>S. viminalis</i> has decorticated wood with striae 10+ mm and leaves usually broader toward the tip (B. Jonsell and T. Karlsson 2000+, vol. 1). Authentic <i>S. cinerea</i> × <i>S. viminalis</i> has not been seen from the flora area.</p><!--
--><p>See 86. <i>Salix pellita</i> and 98. <i>S. viminalis</i> for more discussion of morphologies.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Salix caprea
|authority=Linnaeus
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Salicaceae
|phenology=Flowering mid Mar-mid Jun.
|habitat=Thickets and roadsides
|elevation=20-4600 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Ill.;Md.;Mass.;Mich.;Nebr.;N.Y.;N.C.;Ohio;Pa.;Wash.;Europe.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Weedy;Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_140.xml
|genus=Salix
|subgenus=Salix subg. Vetrix
|section=Salix sect. Cinerella
|species=Salix caprea
}}<!--

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