View source for Dichanthelium ensifolium

{{Treatment/ID
|accepted_name=Dichanthelium ensifolium
|accepted_authority=(Baldwin ex Elliott) Gould
|publications=
|common_names=Sword-leaf panicgrass
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Panicum ensifolium
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Panicum dichotomum var. ensifolium
|authority=unknown
}}
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Dichanthelium;Dichanthelium sect. Ensifolia;Dichanthelium ensifolium
|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>[[Dichanthelium]]</div><div class="higher-taxon"><small>section</small>[[Dichanthelium sect. Ensifolia]]</div><div class="higher-taxon"><small>species</small>[[Dichanthelium ensifolium]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 436
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose, with caudices. <b>Basal</b> rosettes well-differentiated; blades 1.5-6 cm, ovate to lanceolate, soft, glabrous. <b>Culms</b> 10-40 cm tall, 0.2-0.8 (1.6) mm thick, weak, erect or reclining; nodes usually glabrous, sometimes sparsely bearded; internodes usually glabrous, occasionally sparsely pubescent; fall phase with spreading culms, sparingly branched, branching mostly from the midculm nodes, occasionally producing small fascicles of leafy branchlets. <b>Cauline</b> leaves 4-9; sheaths much shorter than the internodes, prominently veined, glabrous or sparsely pilose and ciliate, particularly at the top; ligules 0.2-1.8 mm, often more than 1 mm, of hairs, without adjacent pseudoligules; blades 1.5-3.5 cm long (seldom longer), 1.5-4 mm wide, all similar in size, thin, spreading or reflexed, abaxial surfaces puberulent, at least apically, or sparsely pilose, adaxial surfaces glabrous or sparsely pilose, at least basally, bases abruptly and strongly constricted, occasionally ciliate, margins entire or faintly scabridulous, rarely white-cartilaginous. <b>Primary</b> panicles 1.5-4 cm, nearly as wide as long, long-exserted; branches wiry, mostly spreading, minutely scabridulous. <b>Spikelets</b> 1.2-1.5 mm, ellipsoid to obovoid, yellow-green to purplish, puberulent or glabrous, subacute or obtuse. <b>Lower</b> glumes seldom more than 1/4 as long as the spikelets, acute or obtuse; upper glumes usually slightly shorter than the lower lemmas and upper florets, not strongly veined; upper florets 1.1-1.4 mm long, less than 1 mm wide, ellipsoid, acute. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Dichanthelium ensifolium</i> grows in wet to moist, sandy pinelands, savannahs, and bogs, often on <i>Sphagnum</i> mats, primarily on the coastal plain. It extends south into Mesoamerica, and has been reported from Venezuela. Occasional specimens grade towards the larger <i>D. tenue</i>, and are usually found on somewhat drier sites. It also resembles <i>D. chamaelonche</i>, but that species is usually more densely cespitose, has slightly smaller, glabrous spikelets, and generally occupies drier, disturbed sites.</p><!--
--><p>The two subspecies are sympatric, often growing together at the same sites.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Sheaths sparsely spreading-pilose; ligules usually 1-1.8 mm long; blades sparsely pilose or glabrous on both surfaces
|[[Dichanthelium ensifolium subsp. curtifolium|Dichanthelium ensifolium subsp. curtifolium]]
|-id=key-0-1
|1
|Sheaths glabrous; ligules 0.2-1 mm long; blades usually puberulent abaxially, usually glabrous, occasionally pubescent adaxiall,
|[[Dichanthelium ensifolium subsp. ensifolium|Dichanthelium ensifolium subsp. ensifolium]]
|}
</div></div><!--

-->{{#Taxon:
name=Dichanthelium ensifolium
|author=
|authority=(Baldwin ex Elliott) Gould
|rank=species
|parent rank=section
|synonyms=Panicum ensifolium;Panicum dichotomum var. ensifolium
|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/V25/V25_1187.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Dichanthelium
|section=Dichanthelium sect. Ensifolia
|species=Dichanthelium ensifolium
}}<!--

-->[[Category:Treatment]][[Category:Dichanthelium sect. Ensifolia]]