View source for Scirpus ancistrochaetus

{{Treatment/ID
|accepted_name=Scirpus ancistrochaetus
|accepted_authority=Schuyler
|publications={{Treatment/Publication
|title=Rhodora
|place=64: 44, plate 1266, fig. 1. 1962
|year=1962
}}
|common_names=Scirpe à crochets
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Scirpus;Scirpus ancistrochaetus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Scirpus]]</div><div class="higher-taxon"><small>species</small>[[Scirpus ancistrochaetus]]</div></div>
|volume=Volume 23
|mention_page=page 10, 14, 15
|treatment_page=page 16
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;whole_organism growth form"><b>Plants </b>cespitose;</span> <span class="statement" id="st-d0_s1" data-properties="rhizome coloration;rhizome height or length or size;rhizome fragility;rhizome texture">rhizomes brownish, short, tough, fibrous.</span> <span class="statement" id="st-d0_s2" data-properties="culm reproduction;culm orientation;culm orientation"><b>Culms:</b> fertile ones upright or reclining;</span> <span class="statement" id="st-d0_s3" data-properties="">nodes sometimes with axillary bulblets.</span> <span class="statement" id="st-d0_s4" data-properties="leaf quantity"><b>Leaves </b>5–9 per culm;</span> <span class="statement" id="st-d0_s5" data-properties="leaf sheath coloration">sheaths of proximal leaves green to whitish or brown;</span> <span class="statement" id="st-d0_s6" data-properties="proximal sheath prominence;proximal blade prominence;septum quantity">proximal sheaths and blades with septa many, conspicuous;</span> <span class="statement" id="st-d0_s7" data-properties="blade length;blade atypical width;blade width">blades 32–68 cm × 7–13 (–16) mm.</span> <span class="statement" id="st-d0_s8" data-properties="inflorescence position or structure subtype;lateral inflorescence quantity"><b>Inflorescences </b>terminal, rarely also with 1 lateral inflorescence from distal leaf-axil;</span> <span class="statement" id="st-d0_s9" data-properties="ray orientation;ray orientation;ray quantity;ray quantity;distal branch pubescence or relief;proximal branch architecture or pubescence or relief;proximal branch relief">rays all arching or sometimes 1 or 2 ascending, distal branches scabrous, proximal branches smooth, rarely scabrellous, rays sometimes with axillary bulblets;</span> <span class="statement" id="st-d0_s10" data-properties="involucral-bract base coloration;margin coloration;margin coating">bases of involucral-bracts green, margins usually speckled with redbrown, not glutinous.</span> <span class="statement" id="st-d0_s11" data-properties="spikelet architecture;spikelet shape;spikelet length;spikelet width"><b>Spikelets </b>in clusters of 2–18 (largest cluster with 8 or more), spikelets sessile, ovoid to narrowly ovoid, 3–5 × 2–3 mm;</span> <span class="statement" id="st-d0_s12" data-properties="scale coloration;scale coloration;scale arrangement or shape;scale some measurement;midrib coloration;apex shape;mucro atypical some measurement;mucro some measurement">scales brown or blackish brown with greenish midribs, elliptic, 1.5–2.5 mm, apex slightly mucronate, mucro 0.05–0.1 (–0.2) mm.</span> <span class="statement" id="st-d0_s13" data-properties="perianth bristle duration;perianth bristle quantity;perianth bristle fragility or size;perianth bristle course;perianth bristle course;perianth bristle height or length or size;perianth bristle size or length;perianth bristle length or size;tooth orientation;tooth architecture;tooth shape;tooth arrangement;scale position or shape;scale quantity;scale position"><b>Flowers:</b> perianth bristles persistent, 6, stout, straight or curved, slightly shorter to slightly longer than achene, with retrorse, thick-walled, sharp-pointed teeth densely arranged in distal 0.6–0.9, enclosed within scales;</span> <span class="statement" id="st-d0_s14" data-properties="style shape">styles 3-fid.</span> <span class="statement" id="st-d0_s15" data-properties="achene coloration;achene shape;achene shape;achene length;achene width;2n chromosome quantity"><b>Achenes </b>pale-brown, elliptic to obovate in outline, planoconvex, 1.1–1.7 × 0.6–0.8 mm. <b>2n</b> = 54.</span><!--

-->{{Treatment/Body
|phenology=Fruiting late spring–early summer (Jul).
|habitat=Growing in wet depressions, bogs, sinkhole ponds, or adjacent to pools
|elevation=100–1100 m
|distribution=Que.;Md.;Mass.;N.H.;N.Y.;Pa.;Vt.;Va.;W.Va.
|discussion=<p>Scirpus ancistrochaetus occasionally hybridizes with S. hattorianus. Scirpus ancistrochaetus once grew in Washington County, New York; it is apparently no longer present in the state.</p><!--
--><p>Scirpus ancistrochaetus is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Scirpus ancistrochaetus
|authority=Schuyler
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting late spring–early summer (Jul).
|habitat=Growing in wet depressions, bogs, sinkhole ponds, or adjacent to pools
|elevation=100–1100 m
|distribution=Que.;Md.;Mass.;N.H.;N.Y.;Pa.;Vt.;Va.;W.Va.
|reference=None
|publication title=Rhodora
|publication year=1962
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V23/V23_11.xml
|genus=Scirpus
|species=Scirpus ancistrochaetus
|2n chromosome quantity=54
|achene coloration=pale-brown
|achene length=1.1mm;1.7mm
|achene shape=planoconvex;elliptic;obovate
|achene width=0.6mm;0.8mm
|apex shape=mucronate
|blade atypical width=13mm;16mm
|blade length=32cm;68cm
|blade width=7mm;13mm
|culm orientation=reclining;upright
|culm reproduction=fertile
|distal branch pubescence or relief=scabrous
|inflorescence position or structure subtype=terminal
|involucral-bract base coloration=green
|lateral inflorescence quantity=1
|leaf quantity=5;9
|leaf sheath coloration=green;whitish or brown
|margin coating=not glutinous
|margin coloration=speckled with redbrown
|midrib coloration=greenish
|mucro atypical some measurement=0.1mm;0.2mm
|mucro some measurement=0.05mm;0.1mm
|perianth bristle course=curved;straight
|perianth bristle duration=persistent
|perianth bristle fragility or size=stout
|perianth bristle height or length or size=shorter
|perianth bristle length or size=slightly longer
|perianth bristle quantity=6
|perianth bristle size or length=shorter to slightly
|proximal blade prominence=conspicuous
|proximal branch architecture or pubescence or relief=smooth
|proximal branch relief=scabrellous
|proximal sheath prominence=conspicuous
|ray orientation=sometimes;arching
|ray quantity=2;1
|rhizome coloration=brownish
|rhizome fragility=tough
|rhizome height or length or size=short
|rhizome texture=fibrous
|scale arrangement or shape=elliptic
|scale coloration=blackish brown;brown
|scale position=enclosed
|scale position or shape=distal
|scale quantity=0.6;0.9
|scale some measurement=1.5mm;2.5mm
|septum quantity=many
|spikelet architecture=sessile
|spikelet length=3mm;5mm
|spikelet shape=ovoid;narrowly ovoid
|spikelet width=2mm;3mm
|style shape=3-fid
|tooth architecture=thick-walled
|tooth arrangement=arranged
|tooth orientation=retrorse
|tooth shape=sharp-pointed
|whole_organism growth form=plant;cespitose
}}<!--

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