View source for Carex filifolia

{{Treatment/ID
|accepted_name=Carex filifolia
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Gen. N. Amer. Pl.
|place=2: 204. 1818
|year=1818
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Cyperaceae;Carex;Carex sect. Filifoliae;Carex filifolia
|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. Filifoliae]]</div><div class="higher-taxon"><small>species</small>[[Carex filifolia]]</div></div>
|volume=Volume 23
|mention_page=page 566
|treatment_page=page 567
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Culms </b>round or trigonous, filiform, wiry, angles proximal to spike blunt or sharp, 5–35 cm, shorter than or longer than leaves. <b>Leaves</b>: basal leaf sheaths fibrillose when old; blades yellow-green or bright green, involute-cylindric, quill-shaped, 6–25 cm, 0.3–0.7 mm wide near base. <b>Spike</b> 7–30 × 3–7 mm, staminate portion 4–14 mm. <b>Proximal</b> pistillate scales pale red-brown with white or gold margins, broadly obovate, 2.3–4.5(–6.5) × 1.7–4 mm, shorter or longer than perigynia, apex obtuse to short-awned. <b>Staminate</b> scales red-brown with broad, white margins, broadly obovate, apex obtuse. <b>Perigynia</b> (2–)5–18, appressed to ascending, white to gold, obovate to orbiculate, 1.9–4.8 × 1.3–2 mm, body conspicuously hirsute or pubescent, at least distal 1/4 (occasionally only proximal to beak); beak 0–0.8 mm, style base often conspicuously exserted from beak; rachilla present. <b>Achenes</b> obovate to elliptic, 1.5–3.3 × 1.1–1.9 mm. <b>Stigmas</b> ± black.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Kans.;Minn.;Mont.;N.Dak.;N.Mex.;Nebr.;Nev.;Oreg.;S.Dak.;Utah;Wash.;Wyo.
|discussion=<p>Varieties 2 (2 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Perigynia (2.8–)3–4.8 mm, beak 0.2–0.8 mm; achene 2.2–3.3 mm; longest pistillate scales (excluding awns) usually equaling or longer than perigynia.
|[[Carex filifolia var. filifolia|Carex filifolia var. filifolia]]
|-id=key-0-1
|1
|Perigynia 1.9–3 mm, beak absent or less than 0.2(–0.3) mm; achene 1.5–2.3 mm; longest pistillate scales (excluding awns) often shorter than perigynia.
|[[Carex filifolia var. erostrata|Carex filifolia var. erostrata]]
|}
</div></div><!--

-->{{#Taxon:
name=Carex filifolia
|authority=Nuttall
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Cyperaceae
|distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Kans.;Minn.;Mont.;N.Dak.;N.Mex.;Nebr.;Nev.;Oreg.;S.Dak.;Utah;Wash.;Wyo.
|reference=None
|publication title=Gen. N. Amer. Pl.
|publication year=1818
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_1082.xml
|genus=Carex
|section=Carex sect. Filifoliae
|species=Carex filifolia
}}<!--

-->

[[Category:Treatment]]
[[Category:Carex sect. Filifoliae]]
[[Category:Revised Since Print]]