View source for Scleria muehlenbergii

{{Treatment/ID
|accepted_name=Scleria muehlenbergii
|accepted_authority=Steudel
|publications={{Treatment/Publication
|title=Nomencl. Bot. ed.
|place=2, 2: 543. 1841
|year=1841
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Scleria reticularis var. pubescens
|authority=Britton
|rank=variety
}}
|hierarchy=Cyperaceae;Scleria;Scleria muehlenbergii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Scleria]]</div><div class="higher-taxon"><small>species</small>[[Scleria muehlenbergii]]</div></div>
|volume=Volume 23
|mention_page=page 244, 248, 251
|treatment_page=page 250
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism growth form"><b>Plants </b>annual or sometimes perennial;</span> <span class="statement" id="st-d0_s1" data-properties="root texture">roots fibrous;</span> <span class="statement" id="st-d0_s2" data-properties="rhizome presence;rhizome height or length or size;form duration">rhizomes present in perennial forms, short.</span> <span class="statement" id="st-d0_s3" data-properties="culm architecture or arrangement or growth form;culm architecture or arrangement or growth form;culm orientation;culm orientation;culm size;culm atypical some measurement;culm some measurement;culm pubescence;culm pubescence"><b>Culms </b>solitary or in tufts, erect or spreading, slender, 20–90 (–125) cm, glabrous or hairy.</span> <span class="statement" id="st-d0_s4" data-properties="sheath coloration;sheath architecture;sheath architecture or shape;sheath pubescence;sheath pubescence"><b>Leaves:</b> sheaths often purplish tinged at base, sometimes somewhat winged, ribbed, glabrous or densely pubescent;</span> <span class="statement" id="st-d0_s5" data-properties="contraligule shape;contraligule height or length or size">contraligules rotund-obtuse, short;</span> <span class="statement" id="st-d0_s6" data-properties="blade arrangement or course or shape;blade prominence or shape;blade architecture or shape;blade shape;blade height or length or size;blade width;blade width;blade pubescence;blade pubescence;blade pubescence or relief;culm variability">blades linear, flat, often ribbed, obtuse, shorter than or equaling culm, 1–5 (–8) mm wide, glabrous or sparsely hirsute, sometimes scabrous on margins and veins abaxially.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence position;inflorescence position or structure subtype;inflorescence arrangement"><b>Inflorescences </b>axillary and terminal, paniculate;</span> <span class="statement" id="st-d0_s8" data-properties="panicle density;panicle atypical some measurement;panicle some measurement;panicle position;panicle arrangement;panicle arrangement or density;panicle position;panicle architecture;peduncle orientation;peduncle orientation;peduncle shape;peduncle shape;peduncle atypical some measurement;peduncle some measurement">panicles diffuse, 15–40 (–80) mm, lateral clusters ± remote, the proximal pedunculate, peduncles often recurved or pendulous, filiform, compressed, (15–) 20–100 mm;</span> <span class="statement" id="st-d0_s9" data-properties="bract architecture or shape;bracteal leaf length;margin pubescence or relief">bracts subtending inflorescence leaflike, a bracteal leaf subtending panicles, usually 1/4–3/4 length of terminal internode, margins scabrous.</span> <span class="statement" id="st-d0_s10" data-properties="spikelet reproduction;spikelet reproduction"><b>Spikelets </b>bisexual or unisexual;</span> <span class="statement" id="st-d0_s11" data-properties="spikelet architecture;spikelet some measurement;spikelet architecture;spikelet atypical some measurement;spikelet some measurement">staminate spikelets 2–3 mm, pistillate spikelets 3–4 (–5) mm;</span> <span class="statement" id="st-d0_s12" data-properties="scale architecture;scale shape;scale architecture;scale shape;scale shape">staminate scales lanceolate, pistillate scales ovatelanceolate, acuminate.</span> <span class="statement" id="st-d0_s13" data-properties="achene coloration;achene coloration;achene pubescence;achene atypical some measurement;achene some measurement;achene relief or architecture;achene architecture or pubescence or relief;achene relief;interangular line coloration;reticulation pubescence;reticulation pubescence;hair coloration;apex shape"><b>Achenes </b>gray or brownish and/or with dark interangular lines and little pubescence, globose to ovoid, 1–3 (–3.5) mm, reticulate to completely smooth, somewhat verrucose in some forms, reticulations smooth or pubescent with tufts of yellowish hairs, apex umbonate;</span> <span class="statement" id="st-d0_s14" data-properties="hypogynium shape;lobe shape;lobe shape;lobe shape;lobe architecture or shape;lobe fixation or orientation">hypogynium distinctly 3-lobed, lobes ovatelanceolate, obtuse or subacute, sometimes cuspidate, appressed to base of achene.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall.
|habitat=Moist to wet (rarely dry) pinelands, savannas, prairies, and bogs: 0–500 m
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;Mexico;West Indies;Central America;n South America
|discussion=<p>Scleria muehlenbergii is uncommon inland from the Coastal Plain, occurring usually in wet places at lower elevations.</p><!--
--><p>This complex in Scleria is a difficult one. Recent authors recognized this plant as only a variety of S. reticularis, using the name S. reticularis var. pubescens. Taking all characters into consideration, S. muehlenbergii appears to be geographically, ecologically, and morphologically distinct from S. reticularis in the flora. As recognized here, S. muehlenbergii is quite variable in stature and achene size and sculpturing. In the United States, occasional plants occur with glabrous achenes, and some collections have achenes lacking or almost lacking sculpturing. Those variants maintain other features of S. muehlenbergii. Some tropical collections of the complex appear to be identical to United States material of S. muehlenbergii; other specimens appear somewhat different and combine characteristics in alternative ways. Those plants do not appear to be simple intermediates between S. muehlenbergii and S. reticularis. Plants from the Caribbean appear to be essentially identical to plants from the United States. Specimens of this complex from Mexico and Central America are also similar in most features to S. muehlenbergii, but some western Mexican plants are quite different, as noted by R. McVaugh (1993b), and Mexican and Central American plants usually have longer inflorescence bracts and often less pubescent achenes. More study is clearly needed here.</p><!--
--><p>R. McVaugh (1993b) suggested that the oldest name available at varietal rank is Scleria bracteata var. angusta Grisebach. The combination under S. reticularis appears not to have been made.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Scleria muehlenbergii
|authority=Steudel
|rank=species
|parent rank=genus
|synonyms=Scleria reticularis var. pubescens
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer–fall.
|habitat=Moist to wet (rarely dry) pinelands, savannas, prairies, and bogs: 0–500 m
|distribution=Ala.;Ark.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;La.;Md.;Miss.;Mo.;N.J.;N.Y.;N.C.;Okla.;Pa.;S.C.;Tenn.;Tex.;Va.;Mexico;West Indies;Central America;n South America
|reference=None
|publication title=Nomencl. Bot. ed.
|publication year=1841
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23_452.xml
|genus=Scleria
|species=Scleria muehlenbergii
|achene architecture or pubescence or relief=smooth
|achene atypical some measurement=3mm;3.5mm
|achene coloration=brownish;gray
|achene pubescence=globose;ovoid
|achene relief=verrucose
|achene relief or architecture=reticulate to completely
|achene some measurement=1mm;3mm
|apex shape=umbonate
|blade architecture or shape=ribbed
|blade arrangement or course or shape=linear
|blade height or length or size=shorter
|blade prominence or shape=flat
|blade pubescence=hirsute;glabrous
|blade pubescence or relief=scabrous
|blade shape=obtuse
|blade width=1mm;5mm
|bract architecture or shape=leaflike
|bracteal leaf length=1/4 length of terminal internode;3/4 length of terminal internode
|contraligule height or length or size=short
|contraligule shape=rotund-obtuse
|culm architecture or arrangement or growth form=in tufts;solitary
|culm atypical some measurement=90cm;125cm
|culm orientation=spreading;erect
|culm pubescence=hairy;glabrous
|culm size=slender
|culm some measurement=20cm;90cm
|culm variability=equaling
|form duration=perennial
|hair coloration=yellowish
|hypogynium shape=3-lobed
|inflorescence arrangement=paniculate
|inflorescence position=axillary
|inflorescence position or structure subtype=terminal
|interangular line coloration=dark
|lobe architecture or shape=cuspidate
|lobe fixation or orientation=appressed
|lobe shape=subacute;obtuse;ovatelanceolate
|margin pubescence or relief=scabrous
|panicle architecture=pedunculate
|panicle arrangement=cluster
|panicle arrangement or density=remote
|panicle atypical some measurement=40mm;80mm
|panicle density=diffuse
|panicle position=proximal;lateral
|panicle some measurement=15mm;40mm
|peduncle atypical some measurement=15mm;20mm
|peduncle orientation=pendulous;recurved
|peduncle shape=compressed;filiform
|peduncle some measurement=20mm;100mm
|reticulation pubescence=pubescent;smooth
|rhizome height or length or size=short
|rhizome presence=absent
|root texture=fibrous
|scale architecture=pistillate;staminate
|scale shape=acuminate;ovatelanceolate;lanceolate
|sheath architecture=winged
|sheath architecture or shape=ribbed
|sheath coloration=purplish tinged
|sheath pubescence=pubescent;glabrous
|spikelet architecture=pistillate;staminate
|spikelet atypical some measurement=4mm;5mm
|spikelet reproduction=unisexual;bisexual
|spikelet some measurement=3mm;4mm
|whole_organism duration=perennial;annual
|whole_organism growth form=plant
}}<!--

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