View source for Corylus cornuta subsp. cornuta

{{Treatment/ID
|accepted_name=Corylus cornuta subsp. cornuta
|accepted_authority=
|publications=
|common_names=Beaked hazel;noisetier &agrave; long bec
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Corylus cornuta var. megaphylla
|authority=Victorin & J. Rousseau
|rank=variety
}} {{Treatment/ID/Synonym
|name=Corylus rostrata
|authority=
|rank=species
}}
|hierarchy=Betulaceae;Betulaceae subfam. Coryloideae;Corylus;Corylus cornuta;Corylus cornuta subsp. cornuta
|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 cornuta]]</div><div class="higher-taxon"><small>subspecies</small>[[Corylus cornuta subsp. cornuta]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> open spreading, to (4–)6 m. <b>Bark</b> light brown, smooth. <b>Branches</b> ascending; twigs glabrous to sparsely pubescent, without glandular hairs. <b>Winter</b> buds containing inflorescences ovoid, 3–5 × 3–4 mm, apex acute. <b>Leaves</b>: petiole glabrous to moderately pubescent, without glandular hairs. <b>Leaf</b> blade ovate to obovate or narrowly elliptic, often nearly angular and lobulate near apex, 5–12 × 3.5–9 cm, base narrowly cordate to narrowly rounded, margins coarsely and often irregularly doubly serrate, apex usually distinctly acuminate; surfaces abaxially glabrous to moderately pubescent, usually pubescent on major veins and in vein axils. <b>Inflorescences</b>: staminate catkins usually in clusters of 2–3, 4.5–6 × 0.5–0.8 cm; peduncles mostly 0.5–2 mm. <b>Nuts</b> in clusters of 2–6; involucral tubular beak long, narrow, 2–3(–4) times length of nuts, densely bristly. <b>2n</b> = 22, 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering very early spring.
|habitat=Moist to dry roadsides, edges of woods, fencerows, waste places, and thickets, or as understory in open woodlands
|elevation=100–500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Colo.;Conn.;Ga.;Idaho;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mont.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|discussion=<p>Like <i>Corylus americana</i> Walter, the beaked hazel (<i>C. cornuta </i>subsp.<i> cornuta</i>) is a weedy shrub and is sometimes considered a pest in carefully managed northern forests. The fruits are similar to those of <i>C. americana</i>, except that the surrounding bracts are connate into a long, narrow, tubular beak. Vegetative individuals of <i>C. cornuta </i>subsp.<i> cornuta</i> can be distinguished from <i>C. americana</i> by the absence of glandular hairs on the petioles and young twigs.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Corylus cornuta subsp. cornuta
|authority=
|rank=subspecies
|parent rank=species
|synonyms=Corylus cornuta var. megaphylla;Corylus rostrata
|basionyms=
|family=Betulaceae
|phenology=Flowering very early spring.
|habitat=Moist to dry roadsides, edges of woods, fencerows, waste places, and thickets, or as understory in open woodlands
|elevation=100–500 m
|distribution=St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Colo.;Conn.;Ga.;Idaho;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mont.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=
|publication year=
|special status=Endemic;Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V3/V3_599.xml
|subfamily=Betulaceae subfam. Coryloideae
|genus=Corylus
|species=Corylus cornuta
|subspecies=Corylus cornuta subsp. cornuta
}}<!--

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