View source for Schoenoplectus mucronatus

{{Treatment/ID
|accepted_name=Schoenoplectus mucronatus
|accepted_authority=(Linnaeus) Palla
|publications={{Treatment/Publication
|title=Verh. K. K. Zool.-Bot. Ges. Wien
|place=38(Sitzungsber.): 49. 1888
|year=1888
}}
|common_names=Rough-seed bulrush;ricefield bulrush
|basionyms={{Treatment/ID/Basionym
|name=Scirpus mucronatus
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=1: 50. 1753
}}
|synonyms=
|hierarchy=Cyperaceae;Schoenoplectus;Schoenoplectus sect. Actaeogeton;Schoenoplectus mucronatus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Schoenoplectus]]</div><div class="higher-taxon"><small>section</small>[[Schoenoplectus sect. Actaeogeton]]</div><div class="higher-taxon"><small>species</small>[[Schoenoplectus mucronatus]]</div></div>
|volume=Volume 23
|mention_page=page 46, 55
|treatment_page=page 58
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial (or annual?); rhizomes hard. <b>Culms</b> sharply trigonous, 0.4–1 m × 2–3 mm. <b>Leaves</b> 1–2; sheath fronts not pinnate-fibrillose; ligules absent; blades absent. <b>Inflorescences</b> capitate; proximal bract divergent to reflexed or rarely erect, trigonous, adaxially channeled, 1–10 cm. <b>Spikelets</b> 4–20, 7–12 × 4 mm; scales orange-brown to straw-colored, central region often greenish, broadly obovate, 3–3.5 × 2–2.5 mm, margins ciliolate, apex obtuse to broadly acute, entire, mucronate. <b>Flowers</b>: perianth members 6, brown, bristlelike, equaling achene, stout, retrorsely spinulose; anthers 0.8 mm; styles 3-fid (or some 2-fid in same spikelet). <b>Achenes</b> dark to blackish brown, thickly plano-convex to obtusely trigonous, broadly obovoid, 1.7–2.2(–2.5) × 1.2–1.7 mm; beak 0.2 mm.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer–fall.
|habitat=Wet soil to emergent in fresh water, ponds, ditches, rice fields
|elevation=20–300 m
|distribution=Calif.;Ill.;Iowa;Ky.;Mo.;Tenn.;Eurasia;Africa;Australia.
|discussion=<p><i>Schoenoplectus mucronatus</i> was collected before 1900 in New Brunswick and New Jersey; apparently the plants did not persist. It has also been reported from New York and Pennsylvania; I have not seen specimens. Elsewhere, it has become firmly established. It is an important ricefield weed in California (M. K. Bellue 1947), where it was first observed in 1942 and is called “ricefield bulrush.” It was first observed in the Midwest in 1971. <i>Schoenoplectus mucronatus</i> is cultivated for wildlife food near the Columbia River in Clark County, Washington, but apparently is not established in that area. <i>Schoenoplectus mucronatus</i> is very similar to S. triangulatus (Roxburgh) Soják of Asia, which differs in its larger spikelets, spikelet scales, and anthers.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Schoenoplectus mucronatus
|authority=(Linnaeus) Palla
|rank=species
|parent rank=section
|synonyms=
|basionyms=Scirpus mucronatus
|family=Cyperaceae
|phenology=Fruiting summer–fall.
|habitat=Wet soil to emergent in fresh water, ponds, ditches, rice fields
|elevation=20–300 m
|distribution=Calif.;Ill.;Iowa;Ky.;Mo.;Tenn.;Eurasia;Africa;Australia.
|introduced=true
|reference=None
|publication title=Verh. K. K. Zool.-Bot. Ges. Wien
|publication year=1888
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_86.xml
|genus=Schoenoplectus
|section=Schoenoplectus sect. Actaeogeton
|species=Schoenoplectus mucronatus
}}<!--

-->[[Category:Treatment]][[Category:Schoenoplectus sect. Actaeogeton]]