View source for Alnus incana subsp. tenuifolia

{{Treatment/ID
|accepted_name=Alnus incana subsp. tenuifolia
|accepted_authority=(Nuttall) Breitung
|publications={{Treatment/Publication
|title=Amer. Midl. Naturalist
|place=58: 25. 1957
|year=1957
}}
|common_names=Thinleaf alder;mountain alder
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Synonym
|name=Alnus tenuifolia
|authority=Nuttall
}}
|synonyms={{Treatment/ID/Synonym
|name=Alnus incana var. occidentalis
|authority=(Dippel) C. L. Hitchcock
}}{{Treatment/ID/Synonym
|name=Alnus incana var. virescens
|authority=S. Watson
}}{{Treatment/ID/Synonym
|name=Alnus occidentalis
|authority=unknown
}}{{Treatment/ID/Synonym
|name=Alnus rugosa var. occidentalis
|authority=(Dippel) C. L. Hitchcock
}}
|hierarchy=Betulaceae;Betulaceae subfam. Betuloideae;Alnus;Alnus incana;Alnus incana subsp. tenuifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Betulaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Betulaceae subfam. Betuloideae]]</div><div class="higher-taxon"><small>genus</small>[[Alnus]]</div><div class="higher-taxon"><small>species</small>[[Alnus incana]]</div><div class="higher-taxon"><small>subspecies</small>[[Alnus incana subsp. tenuifolia]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or trees, to 12 m; shrubs ascending, open, spreading, trees small, shrubby. <b>Bark</b> light gray to dark brown, smooth; lenticels pale, orbiculate to elliptic. <b>Winter</b> buds nearly divergent, ellipsoid, 4–7 mm, apex obtuse; stalks 1–3 mm; scales 2, equal, valvate. <b>Leaf</b> blade ovate to elliptic, 4–10 × 2.5–8 cm, thin, base broadly cuneate to rounded, margins distinctly doubly serrate to nearly crenate or lobulate, teeth relatively blunt or rounded, apex acute to obtuse; surfaces abaxially glabrous to sparsely pubescent, slightly to not noticeably resin-coated. <b>Inflorescences</b>: staminate catkins in 1 or more clusters of 3–5, 4–10 cm; pistillate catkins in 1 or more clusters of 2–5. <b>Infructescences</b> ovoid, 1–2 × 0.8–1.3 cm; peduncles 1–5 mm. <b>2n</b> = 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering early spring.
|habitat=Stream banks, lake shores, margins of wet fields and meadows, bog margins, and muskegs
|elevation=100–3000 m
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>Alnus incana subsp. tenuifolia is somewhat more treelike than the eastern A. incana subsp. rugosa, from which it also differs in leaf shape, leaf margins, and other characters. It is a frequent component of streamside vegetation throughout the Rocky Mountains and other mountainous parts of western North America.</p><!--
--><p>Native Americans used alnus incana subsp. tenuifolia medicinally for pains in the lungs or hips, for scrofula, as a laxative, and as a diuretic for gonorrhea (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Alnus incana subsp. tenuifolia
|author=
|authority=(Nuttall) Breitung
|rank=subspecies
|parent rank=species
|synonyms=Alnus incana var. occidentalis;Alnus incana var. virescens;Alnus occidentalis;Alnus rugosa var. occidentalis
|basionyms=Alnus tenuifolia
|family=Betulaceae
|phenology=Flowering early spring.
|habitat=Stream banks, lake shores, margins of wet fields and meadows, bog margins, and muskegs
|elevation=100–3000 m
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Amer. Midl. Naturalist
|publication year=1957
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V3/V3_386.xml
|subfamily=Betulaceae subfam. Betuloideae
|genus=Alnus
|species=Alnus incana
|subspecies=Alnus incana subsp. tenuifolia
}}<!--

-->[[Category:Treatment]][[Category:Alnus incana]]