View source for Oenothera triangulata

{{Treatment/ID
|accepted_name=Oenothera triangulata
|accepted_authority=(Buckley) W. L. Wagner & Hoch
|publications={{Treatment/Publication
|title=Syst. Bot. Monogr.
|place=83: 214. 2007
|year=2007
}}
|basionyms={{Treatment/ID/Basionym
|name=Gaura triangulata
|authority=Buckley
|rank=species
|publication_title=Proc. Acad. Nat. Sci. Philadelphia
|publication_place=13: 454.  1862
}}
|synonyms={{Treatment/ID/Synonym
|name=G. hexandra var. triangulata
|authority=(Buckley) Munz
|rank=variety
}} {{Treatment/ID/Synonym
|name=G. tripetala var. triangulata
|authority=(Buckley) Munz
|rank=variety
}}
|hierarchy=Onagraceae;Onagraceae subfam. Onagroideae;Onagraceae tribe Onagreae;Oenothera;Oenothera sect. Gaura;Oenothera subsect. Gaura;Oenothera triangulata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Onagraceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Onagraceae subfam. Onagroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Onagraceae tribe Onagreae]]</div><div class="higher-taxon"><small>genus</small>[[Oenothera]]</div><div class="higher-taxon"><small>section</small>[[Oenothera sect. Gaura]]</div><div class="higher-taxon"><small>subsection</small>[[Oenothera subsect. Gaura]]</div><div class="higher-taxon"><small>species</small>[[Oenothera triangulata]]</div></div>
|volume=Volume 10
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>annual, villous proximally, sparsely villous along veins and on margins, usually glabrate, sometimes strigillose distally; from taproot. <b>Stems</b> ascending, usually well-branched from base and distally, rarely unbranched, 15–60 cm. <b>Leaves</b> in a basal rosette and cauline, 1.5–8 × 0.2–0.6(–1.5) cm, blade very narrowly elliptic to oblanceolate or oblong-elliptic, margins entire or weakly sinuate-dentate. <b>Flowers</b> 3(or 4)-merous, zygomorphic, opening at sunset; floral tube 4–5.5 mm; sepals 4.5–6 mm; petals white, fading pink, elliptic-obovate, 3.5–5 mm; filaments 2–3.5 mm, anthers 1.5–3 mm, pollen 35–65% fertile; style 9–10 mm, stigma surrounded by anthers. <b>Capsules</b> narrowly obovoid, 3(or 4)-winged, furrowed between wings, 7–9 × 3–5 mm, narrowed at base; sessile. <b>Seeds</b> (1 or)2–5, yellowishto light brown, 1.5–3.5 × 1–1.5 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jul.
|habitat=Open, sandy sites.
|elevation=200–600 m.
|distribution=Okla.;Tex.
|discussion=<p>Oenothera triangulata is a PTH species and forms a ring of 14 chromosomes in meiosis. The species is self-compatible and autogamous (P. H. Raven and D. P. Gregory 1972[1973]). It may have been derived from hybridization between O. patriciae and O. suffulta. The species has a relatively narrow distribution across south-central Oklahoma and north-central Texas (Oklahoma in Cleveland, Comanche, Cotton, Grady, Oklahoma, Rogers, Stephens, and Tulsa counties; Texas in Archer, Baylor, Callahan, Clay, Coleman, Crosby, Eastland, Erath, Jones, Montague, Taylor, Throckmorton, Tom Greene, Wichita, Wilbarger, and Young counties).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Oenothera triangulata
|authority=(Buckley) W. L. Wagner & Hoch
|rank=species
|parent rank=subsection
|synonyms=G. hexandra var. triangulata;G. tripetala var. triangulata
|basionyms=Gaura triangulata
|family=Onagraceae
|phenology=Flowering Apr–Jul.
|habitat=Open, sandy sites.
|elevation=200–600 m.
|distribution=Okla.;Tex.
|reference=None
|publication title=Syst. Bot. Monogr.
|publication year=2007
|special status=
|source xml=https://xjsachs2@bitbucket.org/aafc-mbb/fna-data-curation.git/src/1f4bf54ae2f7dbd5376c45b4fe1b388e15b53086/coarse_grained_fna_xml/V10/V10_100.xml
|subfamily=Onagraceae subfam. Onagroideae
|tribe=Onagraceae tribe Onagreae
|genus=Oenothera
|section=Oenothera sect. Gaura
|subsection=Oenothera subsect. Gaura
|species=Oenothera triangulata
}}<!--

-->[[Category:Treatment]][[Category:Oenothera subsect. Gaura]]