View source for Imperata ← Imperata You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Imperata |accepted_authority=Cirillo |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Andropogoneae;Imperata |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 Andropogoneae]]</div><div class="higher-taxon"><small>genus</small>[[Imperata]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 618 }}<!-- --><span class="statement" id="st-d0_s0" data-properties=""><b>Plants </b>perennial;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism architecture;whole_organism growth form">strongly rhizomatous.</span> <span class="statement" id="st-d0_s2" data-properties="culm atypical some measurement;culm some measurement;culm orientation;culm architecture;node quantity"><b>Culms </b>10-150 (217) cm, mostly erect and unbranched, usually with 3-4 nodes.</span> <span class="statement" id="st-d0_s3" data-properties="leaf odor"><b>Leaves </b>not aromatic;</span> <span class="statement" id="st-d0_s4" data-properties="sheath architecture;sheath architecture or pubescence or shape">sheaths open, ciliate at the margins of the collars;</span> <span class="statement" id="st-d0_s5" data-properties="ligule texture">ligules membranous;</span> <span class="statement" id="st-d0_s6" data-properties="leaf blade shape;leaf blade architecture or pubescence or shape;leaf blade size">blades of the basal leaves linear to lanceolate, sometimes ciliate basally, those of the cauline leaves reduced.</span> <span class="statement" id="st-d0_s7" data-properties="inflorescence position or structure subtype;inflorescence shape;rachis prominence"><b>Inflorescences </b>terminal, cylindrical to conical panicles with an evident rachis;</span> <span class="statement" id="st-d0_s8" data-properties="hair quantity;hair length or size">rachises often with numerous long hairs;</span> <span class="statement" id="st-d0_s9" data-properties="pair architecture">inflorescence branches 1-7 cm, usually shorter than the rachises, with spikelets in unequally pedicellate pairs;</span> <span class="statement" id="st-d0_s10" data-properties="inflorescence branch some measurement;inflorescence branch height or length or size">disarticulation below the glumes.</span> <span class="statement" id="st-d0_s11" data-properties="spikelet reproduction;spikelet architecture"><b>Spikelets </b>homogamous and homomorphic, unawned;</span> <span class="statement" id="st-d0_s12" data-properties="callus height or length or size;callus pubescence;hair some measurement">calluses very short, hairy, hairs 7-16 mm.</span> <span class="statement" id="st-d0_s13" data-properties="glume variability;glume size;glume texture;glume architecture;glume length or size;glume quantity;hair length or size;floret position"><b>Glumes </b>equal to subequal, membranous, 3-9-veined, with hairs longer than the florets over at least the lower 1/2;</span> <span class="statement" id="st-d0_s14" data-properties="lower floret size;lemma coloration;lemma texture">lower florets reduced to hyaline or membranous lemmas;</span> <span class="statement" id="st-d0_s15" data-properties="upper floret reproduction;lemma presence;lemma coloration">upper florets bisexual, lemmas, if present, hyaline, unawned;</span> <span class="statement" id="st-d0_s16" data-properties="anther quantity;anther coloration">anthers 1-2, yellow to brown;</span> <span class="statement" id="st-d0_s17" data-properties="stigma shape;stigma coloration">stigmas elongate, purple to brown;</span> <span class="statement" id="st-d0_s18" data-properties="style fusion;style fusion">styles connate or free.</span> <span class="statement" id="st-d0_s19" data-properties="pedicel fusion;tip shape"><b>Pedicels </b>not fused to the branch axes, terminating in cuplike tips.</span> <span class="statement" id="st-d0_s20" data-properties="caryopsis shape;caryopsis coloration;x chromosome quantity"><b>Caryopses </b>ovate to obovate, light to dark-brown, x = 10.</span><!-- -->{{Treatment/Body |distribution=Puerto Rico;Va.;N.Mex.;Tex.;La.;Utah;Calif.;Ala.;Ga.;Miss.;S.C.;Ariz.;Fla.;Oreg.;Nev. |discussion=<p>Imperata has nine species and is widely distributed in warm regions of both hemispheres. Its economic importance is primarily negative, as both I. cylindrica and I. brasiliensis are weedy (Gabel 1989), but new shoots of both species are used for hay or grazing. Imperata is thought to be closely related to Miscanthus. One species is native to the Flora region, and two have been introduced.</p> |tables= |references={{Treatment/Reference |id=gabel1989a |text=Gabel, M.L. 1989. Federal noxious weed identification bulletin. U.S. Dept. of Agriculture, Animal Sc Plant Health Inspection Service, Plant Protection & Quarantine Bull. 28:1-10 }}{{Treatment/Reference |id=hall1978a |text=Hall, D.W. 1978. The Grasses of Florida. Ph.D. dissertation, University of Florida, Gainesville, Florida, U.S.A. 498 pp. }} }}<!-- --><!-- -->{{#Taxon: name=Imperata |author=Mark L. Gabel |authority=Cirillo |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Puerto Rico;Va.;N.Mex.;Tex.;La.;Utah;Calif.;Ala.;Ga.;Miss.;S.C.;Ariz.;Fla.;Oreg.;Nev. |reference=gabel1989a;hall1978a |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_1519.xml |subfamily=Poaceae subfam. Panicoideae |tribe=Poaceae tribe Andropogoneae |genus=Imperata |anther coloration=yellow;brown |anther quantity=1;2 |callus height or length or size=short |callus pubescence=hairy |caryopsis coloration=light;dark-brown |caryopsis shape=ovate;obovate |culm architecture=unbranched |culm atypical some measurement=217 |culm orientation=erect |culm some measurement=10cm;150cm |floret position=lower |glume architecture=3-9-veined |glume length or size=longer |glume quantity=1/2 |glume size=subequal |glume texture=membranous |glume variability=equal |hair length or size=longer;long |hair quantity=numerous |hair some measurement=7mm;16mm |inflorescence branch height or length or size=usually shorter |inflorescence branch some measurement=1cm;7cm |inflorescence position or structure subtype=terminal |inflorescence shape=cylindrical;conical |leaf blade architecture or pubescence or shape=ciliate |leaf blade shape=linear;lanceolate |leaf blade size=reduced |leaf odor=not aromatic |lemma coloration=hyaline;hyaline |lemma presence=absent |lemma texture=membranous |ligule texture=membranous |lower floret size=reduced |node quantity=3;4 |pair architecture=pedicellate |pedicel fusion=not fused |rachis prominence=evident |sheath architecture=open |sheath architecture or pubescence or shape=ciliate |spikelet architecture=homomorphic |spikelet reproduction=homogamous |stigma coloration=purple;brown |stigma shape=elongate |style fusion=free;connate |tip shape=cuplike |upper floret reproduction=bisexual |whole_organism architecture=rhizomatous |whole_organism duration=perennial |whole_organism growth form=plant |x chromosome quantity=10 }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Andropogoneae]] Templates used on this page: Template:Poaceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Reference (view source) Return to Imperata.