View source for Juncus subg. Poiophylli

{{Treatment/ID
|accepted_name=Juncus subg. Poiophylli
|accepted_authority=Buchenau
|publications={{Treatment/Publication
|title=Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen
|place=4: 406. 1875
|year=1875
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Juncus sect. Poiophylli
|authority=(Buchenau) Vierhapper
|rank=section
}} {{Treatment/ID/Synonym
|name=Juncus subg. Pseudo-tenageia
|authority=Kreczetowicz & Gontscharow
|rank=subgenus
}} {{Treatment/ID/Synonym
|name=Juncus sect. Tenageia
|authority=Dumortier
|rank=section
}} {{Treatment/ID/Synonym
|name=Juncus subg. Tenageia
|authority=(Dumortier) Kuntze
|rank=subgenus
}}
|hierarchy=Juncaceae;Juncus;Juncus subg. Poiophylli
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Juncaceae]]</div><div class="higher-taxon"><small>genus</small>[[Juncus]]</div><div class="higher-taxon"><small>subgenus</small>[[Juncus subg. Poiophylli]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism duration;whole_organism growth form;whole-organism architecture;whole-organism duration"><b>Herbs,</b> perennial, rarely annual, perennials rhizomatous.</span> <span class="statement" id="st-d0_s1" data-properties="stem shape"><b>Stems </b>terete.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position;leaf position"><b>Leaves </b>basal and cauline;</span> <span class="statement" id="st-d0_s3" data-properties="blade prominence or shape;blade shape or vernation;blade shape;blade shape;blade architecture">blade usually flat, involute, rarely nearly terete, channeled, not septate.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescence architecture"><b>Inflorescences </b>terminal cymes, usually sympodial (monopodial in J. trifidus);</span> <span class="statement" id="st-d0_s5" data-properties="bract orientation;bract orientation;bract shape;bract shape;bract shape;bract shape;bract shape">bracts erect or ascending, flat, involute, or terete;</span> <span class="statement" id="st-d0_s6" data-properties="bracteole quantity">bracteoles 2, at base of perianth.</span> <span class="statement" id="st-d0_s7" data-properties="head arrangement"><b>Flowers </b>borne singly, not in heads.</span> <span class="statement" id="st-d0_s8" data-properties="capsule architecture or structure in adjective form;capsule architecture or structure in adjective form;capsule architecture or shape"><b>Capsules </b>1-locular (placentae 1/2–3/4 distance to central axis) or 3-locular, rarely beaked.</span> <span class="statement" id="st-d0_s9" data-properties="seed shape"><b>Seeds </b>not tailed (except J. vaseyi).</span><!--

-->{{Treatment/Body
|distribution=Worldwide
|discussion=<p>Species 25 (18 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=brooks1989a
|text=Brooks, R. E. 1989. A Revision of Juncus Ssubgenus Poiophylli (Juncaceae) in the Eastern United States. Ph.D. dissertation. University of Kansas.
}}{{Treatment/Reference
|id=catling1987a
|text=Catling, P. M. and K. W. Spicer. 1987. The perennial Juncus of section Poiophylli in the Canadian prairie provinces. Canad. J. Bot. 65: 750--760.
}}{{Treatment/Reference
|id=wiegand1900a
|text=Wiegand, K. M. 1900. Juncus tenuis Willd., and some of its North American allies. Bull. Torrey Bot. Club 27: 511--527.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants annual
|[[Juncus bufonius|Juncus bufonius]]
|-id=key-0-1
|1
|Plants perennial.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves minutely serrulate; auricles deeply lacerate
|[[Juncus trifidus|Juncus trifidus]]
|-id=key-0-2
|2
|Leaves entire; auricles not lacerate.
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Auricles at summit of leaf sheath 3–6 mm, membranous, transparent; capsules never 3-locular.
|[[#key-0-4| > 4]]
|-id=key-0-3
|3
|Auricles absent or merely short, scarious or cartilaginous projections less than 2 mm.
|[[#key-0-5| > 5]]
|-id=key-0-4
|4
|Capsules less than 3/4 length of tepals, borne widely spaced along usually diffuse branches of inflorescence; plants mostly 7–9 dm
|[[Juncus anthelatus|Juncus anthelatus]]
|-id=key-0-4
|4
|Capsules 3/4 or more length of tepals, borne congested or branch internodes ca. as long as tepals; plants mostly less than 7 dm
|[[Juncus tenuis|Juncus tenuis]]
|-id=key-0-5
|5
|Leaf blade channeled to terete.
|[[#key-0-6| > 6]]
|-id=key-0-5
|5
|Leaf blade flat.
|[[#key-0-10| > 10]]
|-id=key-0-6
|6
|Inflorescence falsely lateral, overtopped by terete bract that looks to be continuation of culm
|[[Juncus coriaceus|Juncus coriaceus]]
|-id=key-0-6
|6
|Inflorescence terminal, involucre bract flat or much shorter than inflorescence.
|[[#key-0-7| > 7]]
|-id=key-0-7
|7
|Perianth segments obtuse
|[[Juncus squarrosus|Juncus squarrosus]]
|-id=key-0-7
|7
|Perianth segments acute to acuminate.
|[[#key-0-8| > 8]]
|-id=key-0-8
|8
|Seeds distinctly tailed, tail at least 1/2 length of seed body; capsules golden tan
|[[Juncus vaseyi|Juncus vaseyi]]
|-id=key-0-8
|8
|Seeds not tailed; capsules chestnut brown or paler.
|[[#key-0-9| > 9]]
|-id=key-0-9
|9
|Capsules 1-locular or pseudo-3-locular, widely elliptic to rounded, apex rounded; seeds 0.3–0.4 mm
|[[Juncus dichotomus|Juncus dichotomus]]
|-id=key-0-9
|9
|Capsules 3-locular, elliptic, apex somewhat truncate; seeds 0.48–0.7 mm
|[[Juncus greenei|Juncus greenei]]
|-id=key-0-10
|10
|Capsules chestnust brown or darker; tepals apically obtuse or rounded.
|[[#key-0-11| > 11]]
|-id=key-0-10
|10
|Capsules tan or light brown; tepals acute to acuminate.
|[[#key-0-12| > 12]]
|-id=key-0-11
|11
|Anther 1–2 times length of filament, less than 1 mm; capsule usually exceeding perianth
|[[Juncus compressus|Juncus compressus]]
|-id=key-0-11
|11
|Anther 2–4 times length of filament, longer than 1 mm; capsule usually nearly equal to perianth
|[[Juncus gerardii|Juncus gerardii]]
|-id=key-0-12
|12
|Capsules 3-locular.
|[[#key-0-13| > 13]]
|-id=key-0-12
|12
|Capsules 3-locular or pseudo-3-locular.
|[[#key-0-16| > 16]]
|-id=key-0-13
|13
|Tepals 2.5–3.5 mm; capsule nearly globose.
|[[#key-0-14| > 14]]
|-id=key-0-13
|13
|Tepals 4–5.5 mm; capsule ellipsoid to narrowly so.
|[[#key-0-15| > 15]]
|-id=key-0-14
|14
|Tepals green; flowers chiefly arranged along inner side of branches; plants of e North America
|[[Juncus secundus|Juncus secundus]]
|-id=key-0-14
|14
|Tepals usually with brownish midstripe; flowers not secund; plants of w North America
|[[Juncus confusus|Juncus confusus]]
|-id=key-0-15
|15
|Anthers 0.6–0.9 mm; auricles scarious, lobes 0.5 mm; plants of c United States
|[[Juncus brachyphyllus|Juncus brachyphyllus]]
|-id=key-0-15
|15
|Anthers 1.2–1.5 mm; auricles scarious to membranous, 0.2–0.3 mm; plants endemic to s Appalachian Piedmont
|[[Juncus georgianus|Juncus georgianus]]
|-id=key-0-16
|16
|Auricles 0.5–1(–1.5) mm, membranous
|[[Juncus occidentalis|Juncus occidentalis]]
|-id=key-0-16
|16
|Auricles 0.1–0.3(–1) mm, scarious to leathery.
|[[#key-0-17| > 17]]
|-id=key-0-17
|17
|Auricles leathery, yellowish; tepals spreading in fruit, nearly equal to or exceeding capsule; anthers 0.6–1 mm
|[[Juncus dudleyi|Juncus dudleyi]]
|-id=key-0-17
|17
|Auricles scarious, whitish or sometimes purplish tinged, not leathery; anthers 0.4–0.6 mm.
|[[#key-0-18| > 18]]
|-id=key-0-18
|18
|Mature capsules light brown or darker; plants of coastal plain of e, se North America
|[[Juncus dichotomus|Juncus dichotomus]]
|-id=key-0-18
|18
|Mature capsules light tan; plants of interior continent
|[[Juncus interior|Juncus interior]]
|}
</div></div><!--

-->{{#Taxon:
name=Juncus subg. Poiophylli
|authority=Buchenau
|rank=subgenus
|parent rank=genus
|synonyms=Juncus sect. Poiophylli;Juncus subg. Pseudo-tenageia;Juncus sect. Tenageia;Juncus subg. Tenageia
|basionyms=
|family=Juncaceae
|distribution=Worldwide
|reference=brooks1989a;catling1987a;wiegand1900a
|publication title=Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen
|publication year=1875
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/62857cf6bca5c4637d27b113da92d27dbf9962f4/V22/V22_130.xml
|genus=Juncus
|subgenus=Juncus subg. Poiophylli
|blade architecture=not septate
|blade prominence or shape=flat
|blade shape=channeled;terete
|blade shape or vernation=involute
|bract orientation=ascending;erect
|bract shape=terete;involute;terete;involute;flat
|bracteole quantity=2
|capsule architecture or shape=beaked
|capsule architecture or structure in adjective form=3-locular;1-locular
|head arrangement=singly
|inflorescence architecture=sympodial
|leaf position=cauline;basal
|seed shape=not tailed
|stem shape=terete
|whole-organism architecture=rhizomatous
|whole-organism duration=perennial
|whole_organism duration=annual;perennial
|whole_organism growth form=herb
}}<!--

-->[[Category:Treatment]][[Category:Juncus]]