View source for Alnus incana

{{Treatment/ID
|accepted_name=Alnus incana
|accepted_authority=(Linnaeus) Moench
|publications={{Treatment/Publication
|title=Methodus,
|place=424. 1794
|year=1794
}}
|basionyms={{Treatment/ID/Basionym
|name=Betula alnus var. (ß)
|authority=Linnaeus
|rank=variety
|publication_title=Sp. Pl.
|publication_place=2: 983. 1753
}}
|synonyms=
|hierarchy=Betulaceae;Betulaceae subfam. Betuloideae;Alnus;Alnus incana
|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>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>and shrubs, to 25 m; crowns open. <b>Bark</b> light to dark gray, reddish, or brown, smooth, or in age broken into irregular plates; lenticels present or absent, conspicuous, enlarged or unexpanded. <b>Winter</b> buds stipitate, ellipsoid, 4–7 mm, apex rounded to nearly acute; stalk 1–3 mm; scales 2–3, equal, valvate, resin-coated. <b>Leaf</b> blade narrowly ovate to elliptic, base cuneate to narrowly rounded, margins doubly serrate, with distinctly larger secondary teeth, apex acute or short-acuminate to obtuse. <b>Inflorescences</b> formed season before flowering and exposed during winter. <b>Flowering</b> before new growth in spring. <b>Infructescences</b> ovoid to nearly cylindric; peduncles relatively short and stout. <b>Samaras</b> elliptic to obovate, wings narrower than body, irregular in shape.</span><!--

-->{{Treatment/Body
|distribution=United States;Canada
|discussion=<p>Subspecies 4 (2 in the flora).</p><!--
--><p>Native Americans used <i>Alnus incana</i> medicinally to treat anemia, as an emetic, a compress or wash for sore eyes, and a diaphoretic, for internal bleeding, urinary problems, sprains, bruises or backaches, itches, flux, and piles, to cure saddle gall in horses, and when mixed with powdered bumblebees, as an aid for difficult labor (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blade thick, major teeth sharp; large shrubs of ne United States and e Canada.
|[[Alnus incana subsp. rugosa|Alnus incana subsp. rugosa]]
|-id=key-0-1
|1
|Leaf blade thin and papery, secondary teeth rounded or blunt; large shrubs or small trees of w United States, Canada.
|[[Alnus incana subsp. tenuifolia|Alnus incana subsp. tenuifolia]]
|}
</div></div><!--

-->{{#Taxon:
name=Alnus incana
|authority=(Linnaeus) Moench
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Betula alnus var. (ß)
|family=Betulaceae
|distribution=United States;Canada
|reference=None
|publication title=Methodus,
|publication year=1794
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_287.xml
|subfamily=Betulaceae subfam. Betuloideae
|genus=Alnus
|species=Alnus incana
}}<!--

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