View source for Ctenium

{{Treatment/ID
|accepted_name=Ctenium
|accepted_authority=Panz.
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Ctenium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Chloridoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Cynodonteae]]</div><div class="higher-taxon"><small>genus</small>[[Ctenium]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 232
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>usually perennial, sometimes annual; cespitose or rhizomatous. <b>Culms</b> 10-150 cm, simple. <b>Leaves</b> often aromatic; ligules membranous, sometimes ciliate; blades flat or convolute, upper blades reduced. <b>Inflorescences</b> terminal, panicles of 1-3 strongly pectinate branches, usually exceeding the upper leaves; branches usually falcate, if more than 1, digitately arranged, axes crescentic in cross section, with 2 rows of solitary, subsessile spikelets. <b>Spikelets</b> strongly divergent, laterally compressed, with 2 well-developed sterile or staminate florets below the single bisexual floret, reduced sterile or staminate florets also present beyond the bisexual floret; disarticulation above the glumes. <b>Glumes</b> unequal; lower glumes shorter than the upper glumes, 1-veined, keeled; upper glumes 2-3-veined, awned dorsally; lemmas thin, 3-veined, entire or bidentate, awned, awns dorsal, attached just below the lemma apices, or terminal; lodicules 2, glabrous; anthers 3 in bisexual florets, 2 in staminate florets; styles 2. <b>Caryopses</b> ellipsoid, x = 9.</span><!--

-->{{Treatment/Body
|distribution=Va.;N.J.;Ga.;La.;Ala.;N.C.;S.C.;Miss.;Fla.
|discussion=<p><i>Ctenium</i> is a genus of 17-20 species, native to tropical areas of Africa and the Americas, generally being found in savannah associations. The awned upper glumes and the presence of sterile or staminate florets both below and above the fertile floret set it apart from other genera. The aroma of the leaves is described as being like turpentine.</p><!--
--><p>The two native North American species are highly fire-adapted, flourishing in communities that regularly burn on a 1-5 year basis. In the fall, the panicle branches of both species form curves, loops, and corkscrews, which are attractive in floral arrangements.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants without rhizomes, forming dense tufts; upper glumes with a row of prominent glands on each side of the midvein; awns of the upper glumes strongly diverging at maturity
|[[Ctenium aromaticum|Ctenium aromaticum]]
|-id=key-0-1
|1
|Plants with slender, scaly rhizomes; upper glumes without glands, or the glands inconspicuous; awns of the upper glumes straight to ascending
|[[Ctenium floridanum|Ctenium floridanum]]
|}
</div></div><!--

-->{{#Taxon:
name=Ctenium
|author=Mary E. Barkworth;
|authority=Panz.
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Poaceae
|distribution=Va.;N.J.;Ga.;La.;Ala.;N.C.;S.C.;Miss.;Fla.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_836.xml
|subfamily=Poaceae subfam. Chloridoideae
|tribe=Poaceae tribe Cynodonteae
|genus=Ctenium
}}<!--

-->[[Category:Treatment]][[Category:Poaceae tribe Cynodonteae]]