View source for Carex nigromarginata

{{Treatment/ID
|accepted_name=Carex nigromarginata
|accepted_authority=Schweinitz
|publications={{Treatment/Publication
|title=Ann. Lyceum Nat. Hist. New York
|place=1: 68. 1824
|year=1824
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Carex;Carex sect. Acrocystis;Carex nigromarginata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Carex]]</div><div class="higher-taxon"><small>section</small>[[Carex sect. Acrocystis]]</div><div class="higher-taxon"><small>species</small>[[Carex nigromarginata]]</div></div>
|volume=Volume 23
|mention_page=page 534, 541, 543
|treatment_page=page 542
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>densely cespitose; rhizomes ascending to erect, reddish brown, 0–10 mm, stout. <b>Culms</b> 8–27 cm, scabrous distally; bases (remnants of old leaves) strongly fibrous. <b>Leaf</b> blades green, greatly exceeding culms, 1.4–4 mm wide, herbaceous, papillose to scabrous abaxially, papillose to scabrous adaxially. <b>Inflorescences</b> with both staminate and pistillate spikes; peduncles of staminate spikes 0.3–0.8 mm; proximal cauline bracts leaflike, usually shorter than inflorescences. <b>Spikes</b>: proximal pistillate spikes 2–3 (basal spikes 0); cauline spikes overlapping, proximal 2 separated by less than 7 mm, with 6–15 perigynia; staminate spikes 5.3–10 × 1.1–2.3 mm. <b>Scales</b>: pistillate scales pale to, usually, dark reddish brown to purplish brown, with similarly colored or narrow white margins, ovate to lanceolate, 2.9–3.7 × 1.2–2 mm, equaling or exceeding perigynia, apex acute to acuminate or cuspidate; staminate scales ovate, 3–4.3 × 1–1.8 mm, apex obtuse to acute or acuminate. <b>Anthers</b> 1.4–2.6 mm. <b>Perigynia</b> pale green, veinless, ellipsoid, 2.8–3.6 × 1–1.3 mm, longer than wide; beak straight, pale green, 0.7–1 mm, weakly ciliate-serrulate, apical teeth 0.1–0.4 mm. <b>Stigmas</b> 3. <b>Achenes</b> brown, ellipsoid, obtusely trigonous in cross section, 1.4–2 × 0.9–1.2 mm. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Fruiting early Apr–late Jun.
|habitat=Acidic soils of rocky, dry woods, thickets, and clearings, in partial shade of mixed hardwood-pine forests or full sun along open roadsides and clearing edges, often adjacent to streams
|elevation=10–800 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Ky.;Mass.;Miss.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Carex nigromarginata
|authority=Schweinitz
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting early Apr–late Jun.
|habitat=Acidic soils of rocky, dry woods, thickets, and clearings, in partial shade of mixed hardwood-pine forests or full sun along open roadsides and clearing edges, often adjacent to streams
|elevation=10–800 m
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Ky.;Mass.;Miss.;Mo.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;S.C.;Tenn.;Va.;W.Va.
|reference=None
|publication title=Ann. Lyceum Nat. Hist. New York
|publication year=1824
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V23/V23_1023.xml
|genus=Carex
|section=Carex sect. Acrocystis
|species=Carex nigromarginata
}}<!--

-->[[Category:Treatment]][[Category:Carex sect. Acrocystis]]