View source for Carex senta

{{Treatment/ID
|accepted_name=Carex senta
|accepted_authority=Boott
|publications={{Treatment/Publication
|title=Ill. Carex,
|place=174. 1867
|year=1867
}}
|special_status={{Treatment/ID/Special_status
|code=W1
|label=
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Carex;Carex sect. Phacocystis;Carex senta
|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. Phacocystis]]</div><div class="higher-taxon"><small>species</small>[[Carex senta]]</div></div>
|volume=Volume 23
|mention_page=page 379, 381, 389
|treatment_page=page 390
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>not cespitose. <b>Culms</b> acutely angled, 50–100 cm, scabrous. <b>Leaves</b>: basal sheaths red-brown; sheaths of proximal leaves scabrous, fronts with red-brown spots, prominently ladder-fibrillose, apex U-shaped; blades 4–8 mm wide. <b>Inflorescences</b>: proximal bract shorter than inflorescence, 3–5 mm wide. <b>Spikes</b> erect; staminate 2–3; pistillate 2–4; proximal pistillate spike 3–7 cm × 3–5 mm, base cuneate. <b>Pistillate</b> scales dark red-brown to black, shorter than perigynia, apex obtuse, awnless. <b>Perigynia</b> ascending, pale brown with red-brown spots on apical 1/2, 3–7-veined on each face, somewhat flattened, loosely enclosing achenes, thick-walled, ellipsoid or ovoid, 3–3.5 × 2–2.2 mm, somewhat leathery, dull, often scabrous on apical margins, apex obtuse, papillose; beak pale brown or red-brown, 0.2–0.3 mm. <b>Achenes</b> not constricted, dull.</span><!--

-->{{Treatment/Body
|phenology=Fruiting Jun.
|habitat=Wet meadows along streams or rivers
|elevation=0–3000 m
|distribution=Ariz.;Calif.;Mexico.
|discussion=<p><i>Carex senta</i> is a member of the <i>C. stricta</i> group and is most similar to <i>C. angustata</i>. These two species, which may be sympatric, can be distinguished by <i>C. senta</i>, which lacks prominent bladeless sheaths, larger leathery perigynia with 3–7 veins on each face, and larger achenes. <i>Carex senta</i> is distinguished from <i>C. nudata</i> by the flowering from second-year stems, by the wider inflorescence bract, the broader ellipsoid perigynia, and the red-brown (rather than black) scales. Variation within the species, as well as its relationships with other members of the <i>C. stricta</i> subgroup, merit investigation. Specimens of <i>C. senta</i> from Santa Cruz Island have obovoid, apically rounded perigynia with a 0.1 mm beak, and specimens from Arizona have papery perigynia. Collections from New Mexico identified as <i>C. senta</i> are <i>C. stricta</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Carex senta
|authority=Boott
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Cyperaceae
|phenology=Fruiting Jun.
|habitat=Wet meadows along streams or rivers
|elevation=0–3000 m
|distribution=Ariz.;Calif.;Mexico.
|reference=None
|publication title=Ill. Carex,
|publication year=1867
|special status=W1;Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_692.xml
|genus=Carex
|section=Carex sect. Phacocystis
|species=Carex senta
}}<!--

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