View source for Xyris difformis

{{Treatment/ID
|accepted_name=Xyris difformis
|accepted_authority=Chapman
|publications={{Treatment/Publication
|title=Fl. South. U.S.
|place=500. 1860
|year=1860
}}
|basionyms=
|synonyms=
|hierarchy=Xyridaceae;Xyris;Xyris difformis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Xyridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Xyris]]</div><div class="higher-taxon"><small>species</small>[[Xyris difformis]]</div></div>
|volume=Volume 22
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, cespitose, (10–)15–70(–90) cm, base not bulbous. <b>Stems</b> compact. <b>Leaves</b> in narrow to broad fans, 5–50 cm; sheaths soft, base reddish; blade deep green, linear to linear—sword-shaped, flat, not twisted, under 7 mm wide, papillate or smooth, margins smooth or papillate, somewhat scabrous. <b>Inflorescences</b>: scape sheaths exceeded by leaves; scapes linear to filiform, terete proximally, terete or ancipital-2-edged–winged distally, 0.5–3 mm wide, variably ribbed, distally with 3 or more somewhat scabrous ribs, ribs papillate to scabrous; spikes prevalently ovoid, 5–20 mm, apex usually acute; fertile bracts (4–)5–7(–9) mm, margins entire, apex rounded. <b>Flowers</b>: lateral sepals included, slightly curved, 5–7 mm, keel brown, scarious, lacerate; petals unfolding in morning, blade obtriangular, 4 mm; staminodes bearded. <b>Seeds</b> translucent to mealy, ovoid to ellipsoid, 0.5 mm, finely lined longitudinally with small papillae.</span><!--

-->{{Treatment/Body
|distribution=N.S.;Ont.;Ala.;Ark.;Conn.;D.C.;Del.;Fla.;Ga.;Ind.;Ky.;La.;Maine;Mass.;Md.;Mich.;Miss.;N.C.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Va.;Vt.;Wis.;Central America.
|discussion=<p>Varieties 3 (3 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaves and scapes (except for edges and ribs) smooth; scapes somewhat to much widened distally; 2 ribs comparably wider, making wings, smooth or papillate; seeds translucent
|[[Xyris difformis var. difformis|Xyris difformis var. difformis]]
|-id=key-0-1
|1
|Leaves and scapes variously papillate or minutely scabrous; scapes not much widened distally; ribs all equally prominent, somewhat scabrous; seeds translucent or mealy.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Seeds translucent; leaves spreading-ascending in broad fans, rarely as long as 10 cm, linear–sword-shaped; spikes rarely longer than 5 mm.
|[[Xyris difformis var. curtissii|Xyris difformis var. curtissii]]
|-id=key-0-2
|2
|Seeds mealy; leaves ascending in broad to narrow fans, rarely shorter than (10–)15 cm, linear; spikes 6–10(–15) mm
|[[Xyris difformis var. floridana|Xyris difformis var. floridana]]
|}
</div></div><!--

-->{{#Taxon:
name=Xyris difformis
|authority=Chapman
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Xyridaceae
|distribution=N.S.;Ont.;Ala.;Ark.;Conn.;D.C.;Del.;Fla.;Ga.;Ind.;Ky.;La.;Maine;Mass.;Md.;Mich.;Miss.;N.C.;N.H.;N.J.;N.Y.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Va.;Vt.;Wis.;Central America.
|reference=None
|publication title=Fl. South. U.S.
|publication year=1860
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_390.xml
|genus=Xyris
|species=Xyris difformis
}}<!--

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[[Category:Treatment]]
[[Category:Xyris]]
[[Category:Revised Since Print]]