View source for Carex trisperma

{{Treatment/ID
|accepted_name=Carex trisperma
|accepted_authority=Dewey
|publications={{Treatment/Publication
|title=Amer. J. Sci. Arts
|place=9: 63, plate C, fig. 12. 1825
|year=1825
}}
|common_names=Carex trisperme
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Carex trisperma var. billingsii
|authority=O. W. Knight
|rank=variety
}}
|hierarchy=Cyperaceae;Carex;Carex sect. Glareosae;Carex trisperma
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cyperaceae]]</div><div class="higher-taxon"><small>genus</small>[[Carex]]</div><div class="higher-taxon"><small>section</small>[[Carex sect. Glareosae]]</div><div class="higher-taxon"><small>species</small>[[Carex trisperma]]</div></div>
|volume=Volume 23
|mention_page=page 312, 314
|treatment_page=page 313
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>loosely cespitose, often in large clumps; rhizomes slender, long. <b>Culms</b> arching, weak, 20–70 cm. <b>Leaves</b>: sheaths pale brown abaxially, inner band tight, thin, hyaline, truncate at summit; ligules as wide as long; blades green, flat or channeled, 5–20 cm × 0.25–2 mm. <b>Inflorescences</b> nodding, 5–10 cm × 3–4 mm; proximal bracts bristlelike, 3–10 cm, exceeding inflorescences. <b>Spikes</b> 1–3, remote, 2–4 cm apart, containing 1–5 perigynia, ovoid, 4–6 × 3–4 mm. <b>Pistillate</b> scales whitish with green, 3-veined center, ovate, subequal to perigynia, apex acute (mucronate). <b>Perigynia</b> ascending, pale green or brownish in age, finely many-veined, ovate-elliptic, 2.5–3.7 × 1.5–2 mm, subcoriaceous; beak entire or with few small teeth. <b>Achenes</b> brown, elliptic-oblong, 1.75–2 × 1.25(–1.5) mm, glossy. <b>2n</b> = 60.</span><!--

-->{{Treatment/Body
|phenology=Fruiting Jun–Aug.
|habitat=Mires, especially sphagnum bogs, wet woods, lowlands
|elevation=0–1300 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Conn.;Del.;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt.;W.Va.;Wis.
|discussion=<p><i>Carex trisperma</i> var. billingsii is a reduced type, distinguished by its narrow leaf-blades (0.3–0.5 mm) and fewer (1–2) perigynia per spike than typical. It is known, at least, from Ontario, Quebec, Newfoundland, New Brunswick, Nova Scotia, Prince Edward Island, Maine, Massachusetts, Michigan, New Jersey, New York, Rhode Island, and Pennsylvania.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Carex trisperma
|authority=Dewey
|rank=species
|parent rank=section
|synonyms=Carex trisperma var. billingsii
|basionyms=
|family=Cyperaceae
|phenology=Fruiting Jun–Aug.
|habitat=Mires, especially sphagnum bogs, wet woods, lowlands
|elevation=0–1300 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Conn.;Del.;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt.;W.Va.;Wis.
|reference=None
|publication title=Amer. J. Sci. Arts
|publication year=1825
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_546.xml
|genus=Carex
|section=Carex sect. Glareosae
|species=Carex trisperma
}}<!--

-->[[Category:Treatment]][[Category:Carex sect. Glareosae]]