View source for Panicum amarum subsp. amarum

{{Treatment/ID
|accepted_name=Panicum amarum subsp. amarum
|accepted_authority=unknown
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Panicum;Panicum subg. Panicum;Panicum sect. Repentia;Panicum amarum;Panicum amarum subsp. amarum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Panicoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Paniceae]]</div><div class="higher-taxon"><small>genus</small>[[Panicum]]</div><div class="higher-taxon"><small>subgenus</small>[[Panicum subg. Panicum]]</div><div class="higher-taxon"><small>section</small>[[Panicum sect. Repentia]]</div><div class="higher-taxon"><small>species</small>[[Panicum amarum]]</div><div class="higher-taxon"><small>subspecies</small>[[Panicum amarum subsp. amarum]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 474
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>with horizontally elongated rhizomes, internodes mostly over 1 cm, scales not overlapping. <b>Culms</b> 20-150 cm, solitary and erect or somewhat bunched and decumbent at the base, often branching from the lower nodes. <b>Panicles</b> often less than 5 cm wide, spikelet density less than in <i></i>subsp.<i> amarulum</i>; primary branches solitary or paired, often strongly scabrous, with secondary and tertiary branches. <b>Spikelets</b> 4.7-7.7 mm. <b>Lower</b> glumes with 7-9 prominent veins, midvein scabridulous distally.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Panicum amarum </i>subsp.<i> amarum</i> grows on foredunes, where its longer rhizomes probably permit it to respond quickly to being buried under shifting sand, and occasionally in the swales with <i></i>subsp.<i> amarulum</i>. It ranges farther north (into Connecticut) than <i></i>subsp.<i> amarulum</i>, but apparently not into Mexico, Cuba, or the Bahamas. It includes both tetraploids and hexaploids, and is partially sterile. Hybridization with <i>P. virgatum</i> may have had some role in its origin.</p>
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-->{{#Taxon:
name=Panicum amarum subsp. amarum
|author=
|authority=unknown
|rank=subspecies
|parent rank=species
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V25/V25_1265.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Panicum
|subgenus=Panicum subg. Panicum
|section=Panicum sect. Repentia
|species=Panicum amarum
|subspecies=Panicum amarum subsp. amarum
}}<!--

-->[[Category:Treatment]][[Category:Panicum amarum]]