View source for Rhynchospora chalarocephala

{{Treatment/ID
|accepted_name=Rhynchospora chalarocephala
|accepted_authority=Fernald & Gale
|publications={{Treatment/Publication
|title=Rhodora
|place=42: 426, figs. 1, 2. 1940
|year=1940
}}
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Rhynchospora;Rhynchospora chalarocephala
|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 chalarocephala]]</div></div>
|volume=Volume 23
|mention_page=page 202
|treatment_page=page 212
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, cespitose, 30–100 cm; rhizomes absent. <b>Culms</b> erect to ascending-arching, slender, nearly terete, multiribbed. <b>Principal</b> leaves exceeded by culm; blades flat, linear, 1–2 mm wide, apex tapering, trigonous. <b>Inflorescences</b>: spikelet clusters 3–7, widely spaced, clusters loosely turbinate to hemispheric, to 1.3 cm wide. <b>Spikelets</b> brown to pale red-brown, lance-fusiform, 3–5.5 mm; fertile scales elliptic, 2.5–4 mm, acute, midrib short-excurrent. <b>Flowers</b>: perianth bristles 6, ± equaling tubercle. <b>Fruits</b> 1 per spikelet, (2.5–)2.7–3.3(–3.5) mm, body pale brown with yellowish center, ± broadly oblong-obovoid distal to stipe, lenticular, 1.5–2 × 0.8–1 mm; tubercle narrowly triangularsubulate, (1–)1.2–1.5(–2) mm, less than 0.5 mm wide at base.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall.
|habitat=Moist sands and sandy peats of savannas, acidic stream banks, seeps, flatwoods, ditches, and pond shores
|elevation=0–400 m
|distribution=Ala.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;N.J.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.
|discussion=<p>Some specimens of <i>Rhynchospora chalarocephala</i> are very difficult to distinguish from <i>R. microcephala</i>, and unquestionably intergrades occur in peninsular Florida and the Gulf southern coastal plain. <i>Rhynchospora chalarocephala</i> tends to have longer, paler, narrower spikelets in looser clusters; the dilated part of the fruit body has a narrower, more oblong outline; and the tubercle is both narrower with a narrower base and longer (mostly 1–1.5 mm versus 0.9–1.2 mm in R. micro-cephala). Most material is easily sorted because <i>R. chalarocephala</i> has paler spikelets in turbinate to hemispheric clusters; the dark brown spikelets of <i>R. microcephala</i> are in globose heads.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rhynchospora chalarocephala
|authority=Fernald & Gale
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer–fall.
|habitat=Moist sands and sandy peats of savannas, acidic stream banks, seeps, flatwoods, ditches, and pond shores
|elevation=0–400 m
|distribution=Ala.;Del.;D.C.;Fla.;Ga.;La.;Md.;Miss.;N.J.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.
|reference=None
|publication title=Rhodora
|publication year=1940
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_364.xml
|genus=Rhynchospora
|species=Rhynchospora chalarocephala
}}<!--

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