View source for Euphorbia serpens

{{Treatment/ID
|accepted_name=Euphorbia serpens
|accepted_authority=Kunth in A. von Humboldt et al.
|publications={{Treatment/Publication
|title=Nov. Gen. Sp.
|place=2(fol.): 41; 2(qto.): 52. 1817
|year=1817
}}
|common_names=Creeping or round-leafed spurge;matted sandmat
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce serpens
|authority=(Kunth) Small
|rank=species
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia serpens
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Euphorbiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Euphorbia]]</div><div class="higher-taxon"><small>section</small>[[Euphorbia sect. Anisophyllum]]</div><div class="higher-taxon"><small>species</small>[[Euphorbia serpens]]</div></div>
|volume=Volume 12
|mention_page=page 257, 261, 268, 271, 285, 287
|treatment_page=page 286
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with slender taproot. <b>Stems</b> prostrate, frequently mat-forming and rooting at nodes, 15–50 cm, glabrous. <b>Leaves</b> opposite; stipules connate into conspicuous, deltate scale, white to pink, membranaceous, 0.5–1(–1.2) mm, glabrous; petiole less than 1 mm, glabrous; blade ovate, oblong or orbiculate, 2–7(–9) × 2–6 mm, base asymmetric, rounded to subcordate, margins entire, apex rounded, surfaces without red blotch, glabrous; usually only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes; peduncle 0.5–1(–2.5) mm. <b>Involucre</b> campanulate to turbinate, 0.3–0.7(–1) × 0.4–0.6 mm, glabrous; glands 4, yellow, oblong, 0.1 × 0.2 mm; appendages white to pinkish, equal, forming narrow rim at edge of gland, 0.1–0.2 × 0.2–0.3 mm, distal margin entire or crenulate. <b>Staminate</b> flowers 5–10. <b>Pistillate</b> flowers: ovary glabrous; styles 0.2 mm, 2-fid 1/2 to nearly entire length. <b>Capsules</b> broadly ovoid, oblate, or subglobose, 1.3–1.4 × 1.3–1.7 mm, glabrous; columella (0.9–)1–1.2 mm. <b>Seeds</b> white to gray or light pink, ovoid, bluntly 3–4-angled in cross section, 0.7–1.1 × 0.4–0.7 mm, smooth.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting year-round (in warmer areas) or summer (in temperate regions).
|habitat=Mostly sandy or well-drained soils, desert scrub, coastal scrub, chaparral, oak and juniper woodlands, sand dunes, riparian forests, mesquite grasslands, prairies, coniferous and deciduous hardwood forests, disturbed areas.
|elevation=0–2000 m.
|distribution=Ont.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mich.;Miss.;Mo.;Mont.;Nebr.;N.J.;N.Mex.;N.Dak.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Wyo.;Mexico;West Indies;Bermuda;Central America;South America;introduced in Europe;Asia;Africa;Australia.
|discussion=<p><i>Euphorbia serpens</i> is one of the most widespread species of the genus in the New World. While it may be indigenous to a portion of the flora area, probably in the warmer, southern part of its range, it is weedy and has likely been introduced in many parts of the flora area, such as Canada and the eastern United States. It is also widely distributed in the Old World, where it is certainly introduced. The strictly prostrate habit with stems rooting at the nodes is characteristic. <i>Euphorbia serpens</i> is often confused with <i>E. albomarginata</i>, a species distributed in the southwestern United States; in addition to the features mentioned in the key, an easy and reliable way to distinguish between them is by the size of the involucral gland appendages: those of <i>E. albomarginata</i> are conspicuous to the naked eye, whereas those of <i>E. serpens</i> are inconspicuous.</p>
|tables=
|references=
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-->{{#Taxon:
name=Euphorbia serpens
|authority=Kunth in A. von Humboldt et al.
|rank=species
|parent rank=section
|synonyms=Chamaesyce serpens
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting year-round (in warmer areas) or summer (in temperate regions).
|habitat=Mostly sandy or well-drained soils, desert scrub, coastal scrub, chaparral, oak and juniper woodlands, sand dunes, riparian forests, mesquite grasslands, prairies, coniferous and deciduous hardwood forests, disturbed areas.
|elevation=0–2000 m.
|distribution=Ont.;Sask.;Ala.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Mich.;Miss.;Mo.;Mont.;Nebr.;N.J.;N.Mex.;N.Dak.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Wyo.;Mexico;West Indies;Bermuda;Central America;South America;introduced in Europe;Asia;Africa;Australia.
|reference=None
|publication title=Nov. Gen. Sp.
|publication year=1817
|special status=Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V12/V12_492.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia serpens
}}<!--

-->[[Category:Treatment]][[Category:Euphorbia sect. Anisophyllum]]