View source for Corylus americana

{{Treatment/ID
|accepted_name=Corylus americana
|accepted_authority=Walter
|publications={{Treatment/Publication
|title=Fl. Carol.,
|place=236. 1788
|year=1788
}}
|common_names=American hazel or hazelnut;noisetier d'Amérique
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Corylus americana var. altior
|authority=Farwell
}} {{Treatment/ID/Synonym
|name=Corylus americana var. indehiscens
|authority=E. J. Palmer & Steyermark
}} {{Treatment/ID/Synonym
|name=Corylus americana var. missouriensis
|authority=A. de Candolle
}}
|hierarchy=Betulaceae;Betulaceae subfam. Coryloideae;Corylus;Corylus americana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Betulaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Betulaceae subfam. Coryloideae]]</div><div class="higher-taxon"><small>genus</small>[[Corylus]]</div><div class="higher-taxon"><small>species</small>[[Corylus americana]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> open, upright, rounded, to 3(–5) m. <b>Bark</b> light gray, smooth. <b>Branches</b> ascending; twigs pubescent, covered with bristly glandular hairs. <b>Winter</b> buds containing inflorescences broadly ovoid, 3–4 × 3–4 mm, apex obtuse to rounded. <b>Leaves</b>: petiole pubescent, densely glandular-bristly. <b>Leaf</b> blade broadly ovate, often with straight sides and slight lobes near apex, giving them squarish appearance, 5–16 × 4–12 cm, moderately thin, base narrowly cordate to narrowly rounded, margins sharply serrate or obscurely doubly serrate, apex abruptly to long-acuminate; surfaces abaxially sparsely to moderately pubescent, velutinous to tomentose along major veins and in vein axils. <b>Inflorescences</b>: staminate catkins lateral along branchlets on very short shoots, usually in clusters of 1–2, 4–8 × 0.5–0.8 cm; peduncles mostly 1–5 mm. <b>Nuts</b> in clusters of 2–5, sometimes partially visible; bracts much enlarged, leaflike, distinct nearly to base, slightly longer than to 2 times length of nuts, apex deeply and irregularly laciniate; bract surfaces downy-pubescent, abaxially stipitate-glandular. <b>2n</b> = 22, 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering very early spring.
|habitat=Moist to dry open woods and thickets, hillsides, roadsides, fencerows, and waste places
|elevation=0–750 m
|distribution=Man.;Ont.;Sask.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Kans.;La.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.
|discussion=<p><i>Corylus americana</i> is a weedy species, sometimes considered a pest in carefully managed forests. The nuts are smaller but of the same general quality and flavor as commercial filberts (<i>Corylus</i> maxima Miller and C. colurna Linnaeus).</p><!--
--><p>Native Americans used <i>Corylus americana</i> medicinally for hives, biliousness, diarrhea, cramps, hay fever, childbirth, hemorrhages, prenatal strength, and teething, to induce vomiting, and to heal cuts (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Corylus americana
|author=
|authority=Walter
|rank=species
|parent rank=genus
|synonyms=Corylus americana var. altior;Corylus americana var. indehiscens;Corylus americana var. missouriensis
|basionyms=
|family=Betulaceae
|phenology=Flowering very early spring.
|habitat=Moist to dry open woods and thickets, hillsides, roadsides, fencerows, and waste places
|elevation=0–750 m
|distribution=Man.;Ont.;Sask.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Kans.;La.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Fl. Carol.,
|publication year=1788
|special status=Endemic;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_231.xml
|subfamily=Betulaceae subfam. Coryloideae
|genus=Corylus
|species=Corylus americana
}}<!--

-->[[Category:Treatment]][[Category:Corylus]]