View source for Oxalis triangularis

{{Treatment/ID
|accepted_name=Oxalis triangularis
|accepted_authority=A. St.-Hilaire
|publications={{Treatment/Publication
|title=Fl. Bras. Merid.
|place=1(qto.): 128. 1825
|year=1825
}}
|common_names=Purple shamrock;scurvy grass
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Oxalis palustris
|authority=A. St.-Hilaire
}} {{Treatment/ID/Synonym
|name=O. papilionacea
|authority=Hoffmannsegg ex Zuccarini
}} {{Treatment/ID/Synonym
|name=O. regnellii
|authority=Miquel
}} {{Treatment/ID/Synonym
|name=O. triangularis subsp. papilionacea
|authority=(Hoffmannsegg ex Zuccarini) Lourteig
}}
|hierarchy=Oxalidaceae;Oxalis;Oxalis triangularis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Oxalidaceae]]</div><div class="higher-taxon"><small>genus</small>[[Oxalis]]</div><div class="higher-taxon"><small>species</small>[[Oxalis triangularis]]</div></div>
|volume=Volume 12
|mention_page=page 135, 152
|treatment_page=page 151
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>perennial, acaulous, rhizomes present, branching, short, 1 cm diam., densely scaly, stolons absent, bulblets sometimes present, clustered; bulb scales (1–)3-nerved, margins glandular. <b>Leaves</b> basal, rarely absent at flowering; petiole 12–20 cm; leaflets 3, dark purple, commonly with lighter violet splotches radiating from midvein adaxially, obtriangular to obovate-triangular, (20–)30–50(–60) mm, lobed 1/10 length or apex merely notched, lobes apically truncate to slightly convex, surfaces glabrous, oxalate deposits absent or in short, marginal lines on both sides of notch. <b>Inflorescences</b> umbelliform cymes, (1–)2–5(–9)-flowered; scapes 15–35 cm, glabrous. <b>Flowers</b> heterostylous; sepal apices with 2 orange tubercles; petals white to pinkish or pale purple, 15–22 mm. <b>Capsules</b> ovoid-ellipsoid, 12–18 mm, glabrous.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–May.
|habitat=Disturbed sites, near gardens.
|elevation=0–100 m.
|distribution=Fla.;La.;South America (Argentina;Bolivia;Brazil;Paraguay;Peru).
|discussion=<p>In East Feliciana Parish, Louisiana, north of Baton Rouge, <i>Oxalis triangularis</i> has spread from a planter pot into adjacent woods (G. F. Guala, pers. comm.). In Leon County, Florida, a population is growing and slowly spreading at the edge of a woodland remnant within the city of Tallahassee (L. C. Anderson, pers. comm.).</p><!--
--><p>A. Lourteig (2000) recognized two subspecies sympatric over much of their native ranges (as cited, <i></i></i>subsp.<i><i> triangularis</i> in Argentina, Bolivia, Brazil, and Paraguay, subsp. papilionacea in Bolivia, Brazil, Paraguay, and Peru) and differing by the following contrasts: <i></i></i>subsp.<i><i> triangularis</i> has sepals acute, oxalate tubercles small or absent, and petals white to purplish, three to four times longer than the sepals; subsp. papilionacea has sepals obtuse to subacute with oxalate tubercles thickened, and petals pink to purplish, rarely white, about two to two and a half times longer than the sepals. With these subtle differences and broad sympatry, it seems probable that only a single evolutionary entity exists. In any case, the few North American collections studied here would be <i>Oxalis triangularis</i> in the strict sense. Forms of <i>O. triangularis</i> are sometimes recognized as “atropurpurea” but apparently this is a horticultural name.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Oxalis triangularis
|author=
|authority=A. St.-Hilaire
|rank=species
|parent rank=genus
|synonyms=Oxalis palustris;O. papilionacea;O. regnellii;O. triangularis subsp. papilionacea
|basionyms=
|family=Oxalidaceae
|phenology=Flowering Apr–May.
|habitat=Disturbed sites, near gardens.
|elevation=0–100 m.
|distribution=Fla.;La.;South America (Argentina;Bolivia;Brazil;Paraguay;Peru).
|introduced=true
|reference=None
|publication title=Fl. Bras. Merid.
|publication year=1825
|special status=Introduced
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_253.xml
|genus=Oxalis
|species=Oxalis triangularis
}}<!--

-->[[Category:Treatment]][[Category:Oxalis]]