View source for Carex haydeniana

{{Treatment/ID
|accepted_name=Carex haydeniana
|accepted_authority=Olney ex Porter
|publications={{Treatment/Publication
|title=F. V. Hayden, Prelim. Rep. U.S. Geol. Surv. Wyoming [Hayden],
|place=482. 1871
|year=1871
}}
|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 macloviana subsp. haydeniana
|authority=(Olney) Roy L. Taylor & MacBryde
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Carex nubicola
|authority=Mackenzie
|rank=species
}}
|hierarchy=Cyperaceae;Carex;Carex sect. Ovales;Carex haydeniana
|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. Ovales]]</div><div class="higher-taxon"><small>species</small>[[Carex haydeniana]]</div></div>
|volume=Volume 23
|mention_page=page 352
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>densely cespitose. <b>Culms</b> 9–30(–40) cm. <b>Leaves</b>: sheaths adaxially white-hyaline, sometimes cross-corrugate adaxially, summits usually U-shaped, sometimes prolonged to 3 mm beyond collar; distal ligules 0.3–2 mm; blades 3–4(–5) per fertile culm, 3–16 cm × 1.5–4 mm. <b>Inflorescences</b> dense, dark brown, green and brown, or gold, 1.1–2.1 cm × 13–18 mm; proximal internode 1–2.5(–3.4) mm; 2d internode 0.5–2 mm; proximal bracts scalelike, shorter than inflorescences. <b>Spikes</b> 5–7(–9), aggregated, individually indistinct broadly ovoid, 6.5–10 × 4.5–8 mm, base and apex usually rounded. <b>Pistillate</b> scales reddish or coppery to dark brown, sometimes with whitish or pale gold midstripe, narrowly ovate to ovate, 3–4.8 mm, shorter and narrower than perigynia, apex acute to obtuse. <b>Perigynia</b> ascending to ascending-spreading, light brown to coppery or dark brown, conspicuously 0–3(–8)-veined adaxially, lance-ovate to broadly ovate, flat except over achene, 4–6.5 × 1.5–2.6 mm, 0.3–0.5 mm thick, margin flat, including wing 0.3–0.6(–0.8) mm wide, ciliate-serrulate at least on distal body; beak dark brown to black, white-hyaline at tip, cylindric, unwinged, at least 1 mm, ± entire for 0.3–0.6 mm, abaxial suture inconspicuous or with conspicuous white margin, distance from beak tip to achene (2.3–)2.6–3.8 mm. <b>Achenes</b> elliptic or ovate, (1.2–)1.4–1.8 × 0.8–1.1(–1.3) mm, 0.3–0.45 mm thick. <b>2n</b> = 82.</span><!--

-->{{Treatment/Body
|phenology=Fruiting summer.
|habitat=Rocky or gravelly subalpine to alpine meadows, slopes, stream banks
|elevation=1700–4300 m
|distribution=Alta.;B.C.;Calif.;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>See comment under 110. <i>Carex microptera</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Carex haydeniana
|authority=Olney ex Porter
|rank=species
|parent rank=section
|synonyms=Carex macloviana subsp. haydeniana;Carex nubicola
|basionyms=
|family=Cyperaceae
|phenology=Fruiting summer.
|habitat=Rocky or gravelly subalpine to alpine meadows, slopes, stream banks
|elevation=1700–4300 m
|distribution=Alta.;B.C.;Calif.;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=F. V. Hayden, Prelim. Rep. U.S. Geol. Surv. Wyoming [Hayden],
|publication year=1871
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_610.xml
|genus=Carex
|section=Carex sect. Ovales
|species=Carex haydeniana
}}<!--

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