View source for Rhynchospora capitellata

{{Treatment/ID
|accepted_name=Rhynchospora capitellata
|accepted_authority=(Michaux) Vahl
|publications={{Treatment/Publication
|title=Enum. Pl.
|place=2: 235. 1805
|year=1805
}}
|common_names=Rhynchospore à petites têtes
|basionyms={{Treatment/ID/Basionym
|name=Schoenus capitellatus
|authority=Michaux
|publication_title=Fl. Bor.-Amer.
|publication_place=1: 36. 1803
}}
|synonyms={{Treatment/ID/Synonym
|name=Phaeocephalum glomeratum var. minus
|authority=(Britton) Farwell
}} {{Treatment/ID/Synonym
|name=Rhynchospora capitellata var. leptocarpa
|authority=(Chapman ex Britton) S. F. Blake
}} {{Treatment/ID/Synonym
|name=Rhynchospora capitellata var. minor
|authority=(Britton) S. F. Blake
}} {{Treatment/ID/Synonym
|name=Rhynchospora glomerata var. minor
|authority=Britton
}} {{Treatment/ID/Synonym
|name=Rhynchospora leptocarpa
|authority=unknown
}}
|hierarchy=Cyperaceae;Rhynchospora;Rhynchospora capitellata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Rhynchospora]]</div><div class="higher-taxon"><small>species</small>[[Rhynchospora capitellata]]</div></div>
|volume=Volume 23
|mention_page=page 202, 211, 214
|treatment_page=page 210
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, cespitose, 20–100 cm; rhizomes absent. <b>Culms</b> arching-ascending, leafy, obtusely trigonous, slender; principal leaves overtopped by inflorescence; blades flat, to 3 mm, apex tapering, trigonous. <b>Inflorescences</b> terminal and axillary, clusters 1–5 or more, compact, turbinate or hemispheric, 1–1.5 cm wide; peduncles progressively shorter distally on culm; bracteal leaves mostly exceeding subtended compounds. <b>Spikelets</b> rich deep brown, rarely pale brown, lanceellipsoid, 3.5–4(–5) mm; fertile scale elliptic, 2.7–3 mm, apex acute or rounded, midrib shortexcurrent or not. <b>Flowers</b>: perianth absent. <b>Fruits</b> (1–)2–3(–5) per spikelet, (2–)2.5–3 mm; body redbrown with pale central disc, stipitate, lenticular, obovoid, 1.2–1.5 × 0.7–1(–1.2) mm, margins pale, wirelike, surfaces slick; tubercle triangular-subulate, (0.8–)1–1.2(–1.6) mm.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall.
|habitat=Moist to wet meadows, swales, seeps, stream banks, flatwoods, fens, and bogs
|elevation=0–1600 m
|distribution=N.B.;N.S.;Ont.;Que.;Ala.;Ark.;Calif.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;S.C.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.
|discussion=<p><i>Rhynchospora capitellata</i> occurs infrequently in the lower Gulf coastal plain (in Florida, only north) and intergrades with <i>R. glomerata</i>. Forms with antrorsely barbellate bristles are referred to forma controversa (S. F. Blake) Gale; those with smooth bristles are named forma discutiens (C. B. Clarke) Gale (S. Gale 1944). Occasional forms with trigonous fruits occur.</p><!--
--><p>Bruce Sorrie (pers. comm.) believes that many of the southern coastal plain records for <i>Rhynchospora capitellata</i> are based on examples of a neglected taxon, R. leptocarpa (Chapman) Small (J. K. Small 1933), and he wishes to reinstate it. Occurring in semi-shady moist sites in steepheads, or from seeps and shallows along blackwater streams, the plants are mostly distinguished by the tall, lax habit; the many distant, small clusters of light brown or tan spikelets; and the softer, more lax foliage. Measures of spikelets, fertile scales, perianth, achenes, and fruit tubercles show a strong overlap with those of southern examples of <i>R. capitellata</i>. The long, lax culm habit, the softer and paler foliage, and the paler spikelets could well be ecologic responses, or the plants could indeed represent a geographic variant.</p>
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|references=
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-->{{#Taxon:
name=Rhynchospora capitellata
|author=
|authority=(Michaux) Vahl
|rank=species
|parent rank=genus
|synonyms=Phaeocephalum glomeratum var. minus;Rhynchospora capitellata var. leptocarpa;Rhynchospora capitellata var. minor;Rhynchospora glomerata var. minor;Rhynchospora leptocarpa
|basionyms=Schoenus capitellatus
|family=Cyperaceae
|phenology=Fruiting summer–fall.
|habitat=Moist to wet meadows, swales, seeps, stream banks, flatwoods, fens, and bogs
|elevation=0–1600 m
|distribution=N.B.;N.S.;Ont.;Que.;Ala.;Ark.;Calif.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;S.C.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Enum. 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_361.xml
|genus=Rhynchospora
|species=Rhynchospora capitellata
}}<!--

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