View source for Juglans nigra

{{Treatment/ID
|accepted_name=Juglans nigra
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 997. 1753
|year=1753
}}
|common_names=Black walnut;noyer noir
|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=Wallia nigra
|authority=(Linnaeus) Alefeld
}}
|hierarchy=Juglandaceae;Juglans;Juglans nigra
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Juglandaceae]]</div><div class="higher-taxon"><small>genus</small>[[Juglans]]</div><div class="higher-taxon"><small>species</small>[[Juglans nigra]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees,</b> to 40(-50) m. <b>Bark</b> medium to dark gray or brownish, deeply split into narrow rough ridges. <b>Twigs</b> with distal edge of leaf scar notched, usually deeply, not bordered by well-defined band of pubescence; pith light brown. <b>Terminal</b> buds ovoid or subglobose, weakly flattened, 8-10 mm. <b>Leaves</b> 20-60 cm; petiole 6.5-14 cm. <b>Leaflets</b> (9-)15-19(-23), lanceolate or ovate-lanceolate, symmetric or weakly falcate, (3-)6-15 × 1.5-5.5 cm, margins serrate, apex acuminate; surfaces abaxially with capitate-glandular hairs, simple or 2-rayed fasciculate hairs, and scales scattered over veins and blade, axils of proximal veins with prominent tufts of fasciculate hairs, adaxially glabrous except for scattered capitate-glandular and fasciculate hairs on midrib; terminal leaflet small or often absent. <b>Staminate</b> catkins 5-10 cm; stamens 17-50 per flower; pollen sacs 0.8-0.9 mm. <b>Fruits</b> 1-2, subglobose to globose, rarely ellipsoid, 3.5-8 cm, warty, with scales and capitate-glandular hairs; nuts subglobose to globose, rarely ellipsoid, 3-4 cm, very deeply longitudinally grooved, surface between grooves coarsely warty. <b>2n</b> = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring (Apr–May).
|habitat=Rich woods
|elevation=0-1000 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.
|discussion=<p>Variation of <i>Juglans nigra</i> in central Texas and south-central Oklahoma should be studied; specimens seemingly intermediate between <i>J. nigra</i> and both <i>J. major</i> and <i>J. microcarpa</i> have been seen from this area. E. C. Twisselman (1967) incorrectly reported that <i>J. nigra</i> was locally naturalized in California; his specimens were all <i>J. hindsii</i> (possibly introgressed with <i>J. nigra</i>) and <i>J. californica</i>.</p><!--
--><p><i>Juglans nigra</i> is frequently cultivated as an ornamental, and the nuts are prized for their strong, distinctive flavor.</p><!--
--><p>Native Americans used <i>Juglans nigra</i> medicinally as a miscellaneous disease remedy, a dermatological aid, and a psychological aid (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Juglans nigra
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Wallia nigra
|basionyms=
|family=Juglandaceae
|phenology=Flowering spring (Apr–May).
|habitat=Rich woods
|elevation=0-1000 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|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_491.xml
|genus=Juglans
|species=Juglans nigra
}}<!--

-->[[Category:Treatment]][[Category:Juglans]]