View source for Oxalis pes-caprae

{{Treatment/ID
|accepted_name=Oxalis pes-caprae
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 434. 1753
|year=1753
}}
|common_names=African wood-sorrel;Bermuda buttercup;soursob
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Oxalis cernua
|authority=Thunberg
}}
|hierarchy=Oxalidaceae;Oxalis;Oxalis pes-caprae
|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 pes-caprae]]</div></div>
|volume=Volume 12
|mention_page=page 135
|treatment_page=page 146
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs </b>perennial, acaulous, rhizomes present vertical, white, rootlike, stolons absent, bulb usually solitary, sometimes with bulblets at base; bulb scales not observed. <b>Leaves</b> basal, rarely absent at flowering; petiole 3–12 cm; leaflets 3, green, rarely mottled with purplish red spots, angular-obcordate, (5–)7–20 mm, lobed 1/4–2/5 length, lobes apically convex, margins and abaxial surface villous, adaxial surface glabrous, oxalate deposits absent. <b>Inflorescences</b> umbelliform cymes, 2–12(–20)-flowered; scapes often becoming fistulose proximally, 15–30 cm, sparsely villous to pilose. <b>Flowers</b> tristylous in diploids and tetraploids, consistently short-styled in pentaploids; sepal apices with 2 orange tubercles; petals deep golden yellow, 15–20 mm. <b>Capsules</b> not seen. <b>2n</b> = 14, 28, 35.</span><!--

-->{{Treatment/Body
|phenology=Flowering Nov–Apr.
|habitat=Disturbed areas, orchards, fields, grasslands, oak woodlands, coastal sage, dunes.
|elevation=10–500 m.
|distribution=Ariz.;Calif.;s Africa;introduced also in West Indies;Bermuda;South America;Europe;Asia (China;Iran;Turkey);n Africa;Australia.
|discussion=<p>Outside its native range, <i>Oxalis pes-caprae</i> is mostly represented by a sterile pentaploid morph, although tetraploids also are known. The occurrence of both pentaploid and tetraploid individuals in the exotic range may be the result of independent introductions (P. Michael 1964; R. Ornduff 1986). Fruit production has not been observed in North America, and the plants are assumed to be seed-sterile (Ornduff 1987). Bulbs of <i>O. pes-caprae</i> are rarely collected, as they detach easily from the vertical, rootlike stems. Each bulb may produce over 20, small, whitish bulblets each year. Bulblets may also be formed at the soil surface crown.</p><!--
--><p><i>Oxalis pes-caprae</i> was reported by J. K. Small (1933) to occur in waste places and cultivated grounds in northern Florida, but as noted by D. B. Ward (2004), no Florida specimens are known.</p>
|tables=
|references={{Treatment/Reference
|id=galil1968a
|text=Galil, J. 1968. Vegetative dispersal in Oxalis cernua. Amer. J. Bot. 55: 787–792.
}}{{Treatment/Reference
|id=ornduff1986a
|text=Ornduff, R. 1986. The origin of weediness in Oxalis pes-caprae. Amer. J. Bot. 73: 779–780.
}}{{Treatment/Reference
|id=ornduff1987a
|text=Ornduff, R. 1987. Reproductive systems and chromosome races of Oxalis pes-caprae L. and their bearing on the genesis of a noxious weed. Ann. Missouri Bot. Gard. 74: 79–84.
}}{{Treatment/Reference
|id=putz1994a
|text=Putz, N. 1994. Vegetative spreading of Oxalis pes-caprae (Oxalidaceae). Pl. Syst. Evol. 191: 57–67.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Oxalis pes-caprae
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Oxalis cernua
|basionyms=
|family=Oxalidaceae
|phenology=Flowering Nov–Apr.
|habitat=Disturbed areas, orchards, fields, grasslands, oak woodlands, coastal sage, dunes.
|elevation=10–500 m.
|distribution=Ariz.;Calif.;s Africa;introduced also in West Indies;Bermuda;South America;Europe;Asia (China;Iran;Turkey);n Africa;Australia.
|introduced=true
|reference=galil1968a;ornduff1986a;ornduff1987a;putz1994a
|publication title=Sp. Pl.
|publication year=1753
|special status=Weedy;Introduced
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V12/V12_874.xml
|genus=Oxalis
|species=Oxalis pes-caprae
}}<!--

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