View source for Zoysia ← Zoysia 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=Zoysia |accepted_authority=Willd. |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Zoysia |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>[[Zoysia]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 281 }}<!-- --><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism architecture;whole_organism growth form;whole_organism growth form"><b>Plants </b>perennial, rhizomatous, mat-forming.</span> <span class="statement" id="st-d0_s1" data-properties="culm height"><b>Culms </b>5-40 cm tall.</span> <span class="statement" id="st-d0_s2" data-properties="ligule some measurement"><b>Ligules </b>to 0.3 mm, of hairs, often with longer hairs at the base of each blade immediately behind the ligule;</span> <span class="statement" id="st-d0_s3" data-properties="blade pubescence;callus architecture or pubescence or shape;adaxial surface pubescence;adaxial surface pubescence;adaxial surface pubescence;adaxial surface pubescence;adaxial surface pubescence;apex shape">blades usually glabrous abaxially, sometimes with a ciliate callus at the base of each collar, adaxial surfaces glabrous, scabrous, or sparsely pilose, apices often sharply pointed.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence position or structure subtype;raceme architecture or arrangement or growth form;raceme shape"><b>Inflorescences </b>terminal, exceeding the leaves, solitary spikelike racemes (a single spikelet in Z. minima), spikelets solitary, shortly pedicellate, laterally appressed to the rachises;</span> <span class="statement" id="st-d0_s5" data-properties="spikelet architecture or arrangement or growth form;spikelet architecture;spikelet fixation or orientation">disarticulation beneath the glumes or not occurring.</span> <span class="statement" id="st-d0_s6" data-properties="spikelet shape;floret quantity"><b>Spikelets </b>laterally compressed, with 1 floret;</span> <span class="statement" id="st-d0_s7" data-properties="floret reproduction">florets bisexual.</span> <span class="statement" id="st-d0_s8" data-properties="lower glume presence"><b>Lower </b>glumes usually absent;</span> <span class="statement" id="st-d0_s9" data-properties="upper glume texture;upper glume architecture or shape;awn some measurement">upper glumes enclosing the floret, chartaceous to coriaceous, awned, awns to 2.5 mm;</span> <span class="statement" id="st-d0_s10" data-properties="lemma width;lemma shape;lemma shape;lemma shape;lemma architecture">lemmas thin, lanceolate or linear, acute to emarginate, 1-veined;</span> <span class="statement" id="st-d0_s11" data-properties="palea width;palea presence;x chromosome quantity">paleas thin, rarely present, x = 10.</span><!-- -->{{Treatment/Body |distribution=Puerto Rico;Md.;Miss.;Ont.;La.;Calif.;N.C.;Ala.;Tenn.;N.Y.;Va.;Pacific Islands (Hawaii);Ill.;Ga.;Ind.;Fla.;Ky.;Ohio;N.Mex. |discussion=<p>Zoysia has 11 species. They are native to coastal sands between 42°N and 42°S and from Mauritius to Polynesia. Some species also grow in disturbed inland areas. Three species are used as lawn grasses in mesic tropical and subtropical areas, including parts of the Flora region. Because lawn grasses are rarely collected, the distribution maps for Zoysia show the states in which each species can be successfully grown rather than individual county records.</p><!-- --><p>As is common with commercially important species, several cultivars of Zoysia have been developed, sometimes from hybrids. Whether or not they are hybrids, cultivars often exceed the normal range of variation for a species in one or more respects. This makes it difficult to account for them in a key. The following key is written for specimens that fall within the normal range of the species concerned. In employing it, caution must be used when interpreting blade widths because blades of Zoysia become involute or convolute under drought or salinity stress. In addition, hybridization has resulted in cultivars with vegetative characteristics more like those of one species and reproductive characteristics more like those of another species.</p> |tables= |references= }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Blades to 0.5 mm in diameter; racemes with 3-12 spikelets; peduncles included or extending to 1 cm beyond the sheaths of the flag leaves |[[Zoysia pacifica|Zoysia pacifica]] |-id=key-0-1 |1 |Blades 0.5-5 mm wide; racemes with 10-50 spikelets; peduncles extending (0.3)1-6.5 cm beyond the sheaths of the flag leaves. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Pedicels 1.6-3.5 mm long; spikelets ovate, 1-1.4 mm wide; culm internodes 2-10 mm long; blades ascending |[[Zoysia japonica|Zoysia japonica]] |-id=key-0-2 |2 |Pedicels 0.6-1.6 mm long; spikelets lanceolate, 0.6-1 mm wide; culm internodes 5-40 mm long, all plants with at least some internodes more than 14 mm long; blades patent |[[Zoysia matrella|Zoysia matrella]] |} </div></div><!-- -->{{#Taxon: name=Zoysia |author=Sharon J. Anderson; |authority=Willd. |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Puerto Rico;Md.;Miss.;Ont.;La.;Calif.;N.C.;Ala.;Tenn.;N.Y.;Va.;Pacific Islands (Hawaii);Ill.;Ga.;Ind.;Fla.;Ky.;Ohio;N.Mex. |reference=None |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_927.xml |subfamily=Poaceae subfam. Chloridoideae |tribe=Poaceae tribe Cynodonteae |genus=Zoysia |adaxial surface pubescence=pilose;scabrous;pilose;scabrous;glabrous |apex shape=pointed |awn some measurement=0mm;2.5mm |blade pubescence=glabrous |callus architecture or pubescence or shape=ciliate |culm height=5cm;40cm |floret quantity=1 |floret reproduction=bisexual |inflorescence position or structure subtype=terminal |lemma architecture=1-veined |lemma shape=acute to emarginate;linear;lanceolate |lemma width=thin |ligule some measurement=0mm;0.3mm |lower glume presence=absent |palea presence=absent |palea width=thin |raceme architecture or arrangement or growth form=solitary |raceme shape=spikelike |spikelet architecture=pedicellate |spikelet architecture or arrangement or growth form=solitary |spikelet fixation or orientation=appressed |spikelet shape=compressed |upper glume architecture or shape=awned |upper glume texture=chartaceous;coriaceous |whole_organism architecture=rhizomatous |whole_organism duration=perennial |whole_organism growth form=plant;mat-forming |x chromosome quantity=10 }}<!-- -->[[Category:Treatment]][[Category:Poaceae tribe Cynodonteae]] 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) Return to Zoysia.