View source for Tragus ← Tragus 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=Tragus |accepted_authority=Haller |publications= |basionyms= |synonyms= |hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Tragus |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>[[Tragus]]</div></div> |volume=Volume 25 |mention_page= |treatment_page=page 278 }}<!-- --><span class="statement" id="st-d0_s0" data-properties=""><b>Plants </b>annual or perennial;</span> <span class="statement" id="st-d0_s1" data-properties="whole_organism duration;whole_organism duration;whole_organism growth form;whole_organism growth form">cespitose.</span> <span class="statement" id="st-d0_s2" data-properties="culm atypical some measurement;culm some measurement;culm growth form or texture;culm architecture"><b>Culms </b>(2) 5-65 cm, herbaceous, usually rooting at the lower nodes;</span> <span class="statement" id="st-d0_s3" data-properties="node pubescence;internode pubescence">nodes and internodes glabrous.</span> <span class="statement" id="st-d0_s4" data-properties="leaf position"><b>Leaves </b>cauline;</span> <span class="statement" id="st-d0_s5" data-properties="sheath architecture;sheath height or length or size;sheath pubescence;sheath architecture or pubescence or shape">sheaths open, usually shorter than the internodes, mostly glabrous but long-ciliate at the edges of the collar;</span> <span class="statement" id="st-d0_s6" data-properties="ligule texture;ligule architecture or shape;ligule architecture or pubescence or shape">ligules membranous, truncate, ciliate;</span> <span class="statement" id="st-d0_s7" data-properties="blade prominence or shape;margin architecture or pubescence or shape">blades usually flat, margins ciliate.</span> <span class="statement" id="st-d0_s8" data-properties="inflorescence position or structure subtype;inflorescence size or width;panicle shape"><b>Inflorescences </b>terminal, exceeding the upper leaves, narrow, cylindrical panicles;</span> <span class="statement" id="st-d0_s9" data-properties="spikelet quantity">branches 0.5-5 mm, resembling burs, with 2-5 spikelets;</span> <span class="statement" id="st-d0_s10" data-properties="branch some measurement">disarticulation at the base of the branches.</span> <span class="statement" id="st-d0_s11" data-properties="spikelet arrangement;spikelet fixation;floret quantity"><b>Spikelets </b>crowded, attached individually to the branches, with 1 floret;</span> <span class="statement" id="st-d0_s12" data-properties="proximal spikelet reproduction;proximal spikelet size">proximal spikelet (s) bisexual, larger than the distal spikelet (s);</span> <span class="statement" id="st-d0_s13" data-properties="terminal spikelet reproduction">terminal spikelets often sterile.</span> <span class="statement" id="st-d0_s14" data-properties="glume size"><b>Glumes </b>unequal;</span> <span class="statement" id="st-d0_s15" data-properties="lower glume presence;lower glume size;lower glume architecture;lower glume texture">lower glumes absent or minute, veinless, membranous;</span> <span class="statement" id="st-d0_s16" data-properties="upper glume architecture;row quantity;row dehiscence or orientation;projection course;projection shape;projection shape">upper glumes usually exceeding the florets, 5-7-veined, with 5-7 longitudinal rows of straight or uncinate spinelike projections;</span> <span class="statement" id="st-d0_s17" data-properties="lemma architecture">lemmas 3-veined;</span> <span class="statement" id="st-d0_s18" data-properties="palea architecture;palea coloration;palea texture;x chromosome quantity">paleas 2-veined, hyaline, membranous, x = 10.</span><!-- -->{{Treatment/Body |distribution=Maine;Md.;N.J.;Mass.;N.Mex.;Tex.;N.Y.;Virgin Islands;Pa.;N.C.;Va.;Pacific Islands (Hawaii);S.C.;Ariz.;Puerto Rico |discussion=<p>Tragus has seven species, all of which are native to the tropics and subtropics of the Eastern Hemisphere; four have been introduced into the Flora region. The genus is easily recognized by the spinelike projections on the upper glumes. The number of veins in the glume should be determined by examining the adaxial surface, where they appear as green lines.</p> |tables= |references={{Treatment/Reference |id=anton1981a |text=Anton, A.M. 1981. The genus Tragus (Gramineae). Kew Bull. 36:55-61. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Upper glumes with 5 longitudinal rows of spinelike projections, 5-veined. |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Proximal internodes of the primary branches not longer than the second internode |[[Tragus berteronianus|Tragus berteronianus]] |-id=key-0-2 |2 |Proximal internodes of the primary branches 2-3 (or more) times longer than the second internode |[[Tragus australianus|Tragus australianus]] |-id=key-0-1 |1 |Upper glumes with (5)6-7 longitudinal rows of spinelike projections, 7-veined. |[[#key-0-2| > 2]] |-id=key-0-3 |3 |Panicle branches with 2 (rarely 3) spikelets; proximal spikelets on the branches 3-3.5 mm long |[[Tragus heptaneuron|Tragus heptaneuron]] |-id=key-0-3 |3 |Panicle branches with 3-5 (rarely 2) spikelets; proximal spikelets on the branches 3.8-6.6 mm long |[[Tragus racemosus|Tragus racemosus]] |} </div></div><!-- -->{{#Taxon: name=Tragus |author=J.K. Wipff; |authority=Haller |rank=genus |parent rank=tribe |synonyms= |basionyms= |family=Poaceae |distribution=Maine;Md.;N.J.;Mass.;N.Mex.;Tex.;N.Y.;Virgin Islands;Pa.;N.C.;Va.;Pacific Islands (Hawaii);S.C.;Ariz.;Puerto Rico |reference=anton1981a |publication title= |publication year= |special status= |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25_922.xml |subfamily=Poaceae subfam. Chloridoideae |tribe=Poaceae tribe Cynodonteae |genus=Tragus |blade prominence or shape=flat |branch some measurement=0.5mm;5mm |culm architecture=rooting |culm atypical some measurement=2 |culm growth form or texture=herbaceous |culm some measurement=5cm;65cm |floret quantity=1 |glume size=unequal |inflorescence position or structure subtype=terminal |inflorescence size or width=narrow |internode pubescence=glabrous |leaf position=cauline |lemma architecture=3-veined |ligule architecture or pubescence or shape=ciliate |ligule architecture or shape=truncate |ligule texture=membranous |lower glume architecture=veinless |lower glume presence=absent |lower glume size=minute |lower glume texture=membranous |margin architecture or pubescence or shape=ciliate |node pubescence=glabrous |palea architecture=2-veined |palea coloration=hyaline |palea texture=membranous |panicle shape=cylindrical |projection course=straight |projection shape=spinelike;uncinate |proximal spikelet reproduction=bisexual |proximal spikelet size=larger |row dehiscence or orientation=longitudinal |row quantity=5;7 |sheath architecture=open |sheath architecture or pubescence or shape=long-ciliate |sheath height or length or size=usually shorter |sheath pubescence=glabrous |spikelet arrangement=crowded |spikelet fixation=attached |spikelet quantity=2;5 |terminal spikelet reproduction=sterile |upper glume architecture=5-7-veined |whole_organism duration=perennial;annual |whole_organism growth form=plant;cespitose |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) Template:Treatment/Reference (view source) Return to Tragus.