View source for Calamagrostis ×acutiflora

{{Treatment/ID
|accepted_name=Calamagrostis ×acutiflora
|accepted_authority=(Schrad.) D.C.
|publications=
|common_names=Foerster's reedgrass;Feather reedgrass
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Calamagrostis;Calamagrostis ×acutiflora
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Poeae]]</div><div class="higher-taxon"><small>genus</small>[[Calamagrostis]]</div><div class="higher-taxon"><small>species</small>[[Calamagrostis ×acutiflora]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 721
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>often with robust sterile culms; densely cespitose, with rhizomes 1-3 cm long, about 2 mm thick. <b>Culms</b> 135-210 cm, smooth to slightly scabrous, usually unbranched; nodes about 3. <b>Sheaths</b> and collars smooth; ligules (1)2-7 mm, lacerate; blades (5)11-63(71) cm long, (1)1.5-7.5(8) mm wide, flat or involute, usually scabrous, rarely smooth, adaxial surfaces glabrous or sparsely hairy. <b>Panicles</b> 15-30 cm long, 0.75-1(3) cm wide, erect, contracted, pale green to purple; branches about 6 cm, slightly scabrous, longer branches with spikelets on the distal 2/3, shorter branches with spikelets to the base. <b>Spikelets</b> 4-5 mm; rachilla prolongations about 0.5 mm, hairs about 1.5 mm. <b>Glumes</b> keeled, mostly smooth, slightly scabrous only on the keels, veins usually obscure, apices acute; callus hairs 2-2.5 mm, 0.4-0.6 times as long as the lemmas, abundant; lemmas 3-3.5 mm, 1-1.5 mm shorter than the glumes; awns about 3.5 mm, attached to the lower 1/10 – 1/5 of the lemmas, exserted, slender, usually distinguishable from the callus hairs, bent; anthers not observed.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Calamagrostis ×acutiflora</i> is a hybrid of European origin that is now widely planted as an ornamental, especially in dry sites and gardens throughout northern North America. The parents are <i>C. arundinacea</i> (L.) Roth and <i>C. epigejos</i> (p. 710); the hybrids are seed-sterile.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Calamagrostis ×acutiflora
|author=
|authority=(Schrad.) D.C.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V24/V24_1017.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Poeae
|genus=Calamagrostis
|species=Calamagrostis ×acutiflora
}}<!--

-->[[Category:Treatment]][[Category:Calamagrostis]]