View source for Carex umbellata

{{Treatment/ID
|accepted_name=Carex umbellata
|accepted_authority=Schkuhr ex Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=4(1): 290. 1805
|year=1805
}}
|common_names=Carex en ombelle
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Carex abdita
|authority=E. P. Bicknell
}} {{Treatment/ID/Synonym
|name=Carex microrhyncha
|authority=Mackenzie
}}
|hierarchy=Cyperaceae;Carex;Carex sect. Acrocystis;Carex umbellata
|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 umbellata]]</div></div>
|volume=Volume 23
|mention_page=page 532, 533, 536
|treatment_page=page 538
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>densely cespitose; rhizomes ascending to erect, reddish brown, 0–5 mm, stout. <b>Culms</b> 3–7.5(–18) cm, scabrous distally; bases (remnants of old leaves) weakly to strongly fibrous. <b>Leaf</b> blades pale green, greatly exceeding culms, 1–2.3(–3.8) mm wide, herbaceous, glabrous abaxially, strongly scabrous to papillose adaxially. <b>Inflorescences</b> with both staminate and proximal spikes; peduncles of basal spikes erect, short to elongate, slender; peduncle of staminate spikes 0.7–5.2(–12.3) mm; proximal nonbasal bracts scalelike, usually shorter than (occasionally equaling) inflorescences. <b>Spikes</b>: proximal pistillate spikes 2–5 (basal spikes 1–3); cauline spikes overlapping with staminate spikes, with (1–)4–12 perigynia; staminate spikes 4.6–13 × 0.7–2.2 mm. <b>Scales</b>: pistillate scales reddish brown with narrow white margins, ovate, 2.8–3.9 × 1.5–1.9 mm, equaling or exceeding perigynia, apex acute to acuminate; staminate scales ovate to lanceolate, 3.5–5.1 × 1.1–2.2 mm, apex obtuse to acute. <b>Anthers</b> 1.7–2.2 mm. <b>Perigynia</b> pale green to pale brown, veinless, obovoid to globose, rarely ellipsoid, obtusely trigonous in cross section, 2.2–3.2 × 1–1.4 mm; beak straight, pale green to pale brown, strongly 2-edged, 0.4–1 mm, weakly ciliate-serrulate, apical teeth 0.1–0.2 mm. <b>Stigmas</b> 3. <b>Achenes</b> brown, ellipsoid, obtusely trigonous in cross section, 1.4–1.7 × 1–1.3 mm. <b>2n</b> = 30, 32.</span><!--

-->{{Treatment/Body
|phenology=Fruiting mid Mar–mid Jul.
|habitat=Open, dry to mesic, circumneutral to calcareous, clayey, sandy, and rocky fields, pastures, tall-grass prairies, glades, ridges, slopes, bluffs, dunes, barrens, open deciduous and mixed woodlands, also on serpentine and basalt, often at edges of ant hills
|elevation=90–300 m
|distribution=Greenland;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Ga.;Ill.;Ind.;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;Tex.;W.Va.;Wis.
|discussion=<p>Some botanists think <i>Carex</i> microrhyncha should be retained as a distinct species. A revision of the <i>C. umbellata</i>-<i>C. tonsa</i> complex may reveal distinctions; until that work is done, we prefer to combine C. microrhyncha with <i>C. umbellata</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Carex umbellata
|author=
|authority=Schkuhr ex Willdenow
|rank=species
|parent rank=section
|synonyms=Carex abdita;Carex microrhyncha
|basionyms=
|family=Cyperaceae
|phenology=Fruiting mid Mar–mid Jul.
|habitat=Open, dry to mesic, circumneutral to calcareous, clayey, sandy, and rocky fields, pastures, tall-grass prairies, glades, ridges, slopes, bluffs, dunes, barrens, open deciduous and mixed woodlands, also on serpentine and basalt, often at edges of ant hills
|elevation=90–300 m
|distribution=Greenland;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Ark.;Ga.;Ill.;Ind.;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;Tex.;W.Va.;Wis.
|reference=None
|publication title=Sp. Pl.
|publication year=1805
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V23/V23_1010.xml
|genus=Carex
|section=Carex sect. Acrocystis
|species=Carex umbellata
}}<!--

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