View source for Scleria pauciflora

{{Treatment/ID
|accepted_name=Scleria pauciflora
|accepted_authority=Muhlenberg ex Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=4(1): 318. 1805
|year=1805
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Scleria ciliata var. pauciflora
|authority=(Muhlenberg ex Willdenow) Kükenthal
|rank=variety
}}
|hierarchy=Cyperaceae;Scleria;Scleria pauciflora
|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 pauciflora]]</div></div>
|volume=Volume 23
|mention_page=page 244, 248, 250
|treatment_page=page 249
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism growth form"><b>Plants </b>perennial;</span> <span class="statement" id="st-d0_s1" data-properties="rhizome arrangement or growth form;rhizome shape;rhizome shape;rhizome thickness;rhizome texture">rhizomes clustered, elongate, nodulose, to 5 mm thick, hard.</span> <span class="statement" id="st-d0_s2" data-properties="culm size;culm atypical some measurement;culm some measurement;culm fragility;culm pubescence;culm pubescence"><b>Culms </b>usually in tufts, slender, (15–) 20–50 cm, stiff, glabrous or hairy (villous or ciliate in some forms).</span> <span class="statement" id="st-d0_s3" data-properties="sheath coloration;sheath architecture;sheath architecture or shape;sheath pubescence;sheath pubescence"><b>Leaves:</b> sheaths sometimes reddish, not or scarcely winged, weakly ribbed, short-pubescent or villous;</span> <span class="statement" id="st-d0_s4" data-properties="contraligule shape;contraligule height or length or size">contraligules obtuse to triangular, short;</span> <span class="statement" id="st-d0_s5" data-properties="blade arrangement or course or shape;blade shape;blade shape;blade height or length or size;blade width;blade pubescence;blade pubescence;blade pubescence or relief;inflorescence variability">blades linear, channeled, obtuse, shorter than or equaling inflorescence, 1–2.5 mm wide, glabrous or pubescent, sometimes scabrous on margins.</span> <span class="statement" id="st-d0_s6" data-properties=""><b>Inflorescences </b>terminal cluster, sometimes with 1 or 2 axillary clusters, 0.5–1.5 cm, fasciculate;</span> <span class="statement" id="st-d0_s7" data-properties="spikelet width;spikelet quantity">clusters 2–10 mm wide, each with 1–7 spikelets;</span> <span class="statement" id="st-d0_s8" data-properties="inflorescence position or structure subtype;inflorescence arrangement;inflorescence architecture or arrangement;inflorescence arrangement;inflorescence position;peduncle arrangement;peduncle arrangement or density;peduncle length or size;peduncle shape">lateral clusters remote, on long filiform peduncles;</span> <span class="statement" id="st-d0_s9" data-properties="culm bract architecture or shape;culm bract length or size;culm bract shape;culm bract pubescence;culm bract pubescence">bracts subtending inflorescence leaflike, long awl-shaped, often appearing to continuation of culm, glabrous or ciliate.</span> <span class="statement" id="st-d0_s10" data-properties="spikelet reproduction;spikelet architecture;spikelet some measurement"><b>Spikelets </b>bisexual or staminate, 3–6 mm;</span> <span class="statement" id="st-d0_s11" data-properties="scale architecture;scale shape;scale texture;scale architecture;scale shape;scale shape">staminate scales lanceolate, membranous, pistillate scales ovatelanceolate, acuminate.</span> <span class="statement" id="st-d0_s12" data-properties="achene coloration;achene coloration;achene shape;achene shape;achene atypical some measurement;achene some measurement;marking coloration;base size;base shape;apex shape;apex relief;proximal papilla shape;proximal papilla orientation;proximal papilla architecture"><b>Achenes </b>white or gray and/or with black markings, globose or rarely ovoid, 1–2.5 (–3) mm, base narrowly constricted, trigonous, apex umbonate, papillate-verrucose, proximal papillae elongate, retrorse, spiculose;</span> <span class="statement" id="st-d0_s13" data-properties="hypogynium coloration;border shape;border arrangement;border coating;tubercle quantity;tubercle shape;pair fusion">hypogynium brownish, bluntly trigonous border, bearing 6 globose tubercles arranged in distinct pairs, usually finely powdery.</span><!--

-->{{Treatment/Body
|distribution=Ont.;Ala.;Ark.;Conn.;D.C.;Del.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Mass.;Md.;Miss.;Mo.;N.C.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Va.;Vt.;Mexico;West Indies (Cuba)
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
--><p>Scleria ciliata and S. pauciflora are almost universally regarded as distinct species, even though some authors allude to the existence of varying numbers of transitional specimens. Distinguishing them in the herbarium can sometimes be difficult. Some specimens of S. ciliata have the three tubercles on the hypogynium sufficiently deeply bilobed as to make them difficult to distinguish from the paired, discrete tubercles of S. pauciflora. Achene size and leaf width can be helpful with these problematic specimens. Among recent authors, only R. McVaugh (1993) united S. pauciflora and S. ciliata. The western Mexican specimens studied by McVaugh that prompted his uniting of these two species appear, on closer examination, not to be either intermediate between or clearly referable to either species. Detailed study of tropical material similar to S. pauciflora and S. ciliata is much needed.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants glabrous or sparsely to densely hairy but not copiously villous-ciliate, hairs not longer than 0.4 mm.
|[[Scleria pauciflora var. pauciflora|Scleria pauciflora var. pauciflora]]
|-id=key-0-1
|1
|Plants copiously villous-ciliate with spreading hairs 0.5–1 mm on culms, leaves, and bracts.
|[[Scleria pauciflora var. caroliniana|Scleria pauciflora var. caroliniana]]
|}
</div></div><!--

-->{{#Taxon:
name=Scleria pauciflora
|authority=Muhlenberg ex Willdenow
|rank=species
|parent rank=genus
|synonyms=Scleria ciliata var. pauciflora
|basionyms=
|family=Cyperaceae
|distribution=Ont.;Ala.;Ark.;Conn.;D.C.;Del.;Fla.;Ga.;Ill.;Ind.;Kans.;Ky.;La.;Mass.;Md.;Miss.;Mo.;N.C.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Va.;Vt.;Mexico;West Indies (Cuba)
|reference=None
|publication title=Sp. Pl.
|publication year=1805
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23_448.xml
|genus=Scleria
|species=Scleria pauciflora
|achene atypical some measurement=2.5mm;3mm
|achene coloration=gray;white
|achene shape=ovoid;globose
|achene some measurement=1mm;2.5mm
|apex relief=papillate-verrucose
|apex shape=umbonate
|base shape=trigonous
|base size=constricted
|blade arrangement or course or shape=linear
|blade height or length or size=shorter
|blade pubescence=pubescent;glabrous
|blade pubescence or relief=scabrous
|blade shape=obtuse;channeled
|blade width=1mm;2.5mm
|border arrangement=arranged
|border coating=powdery
|border shape=trigonous
|contraligule height or length or size=short
|contraligule shape=obtuse;triangular
|culm atypical some measurement=15cm;20cm
|culm bract architecture or shape=leaflike
|culm bract length or size=long
|culm bract pubescence=ciliate;glabrous
|culm bract shape=awl--shaped
|culm fragility=stiff
|culm pubescence=hairy;glabrous
|culm size=slender
|culm some measurement=20cm;50cm
|hypogynium coloration=brownish
|inflorescence architecture or arrangement=fasciculate
|inflorescence arrangement=cluster;cluster
|inflorescence position=lateral
|inflorescence position or structure subtype=terminal
|inflorescence variability=equaling
|marking coloration=black
|pair fusion=distinct
|peduncle arrangement=cluster
|peduncle arrangement or density=remote
|peduncle length or size=long
|peduncle shape=filiform
|proximal papilla architecture=spiculose
|proximal papilla orientation=retrorse
|proximal papilla shape=elongate
|rhizome arrangement or growth form=clustered
|rhizome shape=nodulose;elongate
|rhizome texture=hard
|rhizome thickness=0mm;5mm
|scale architecture=pistillate;staminate
|scale shape=acuminate;ovatelanceolate;lanceolate
|scale texture=membranous
|sheath architecture=winged
|sheath architecture or shape=ribbed
|sheath coloration=reddish
|sheath pubescence=villous;short-pubescent
|spikelet architecture=staminate
|spikelet quantity=1;7
|spikelet reproduction=bisexual
|spikelet some measurement=3mm;6mm
|spikelet width=2mm;10mm
|tubercle quantity=6
|tubercle shape=globose
|whole_organism duration=perennial
|whole_organism growth form=plant
}}<!--

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