View source for Euphorbia prostrata

{{Treatment/ID
|accepted_name=Euphorbia prostrata
|accepted_authority=Aiton
|publications={{Treatment/Publication
|title=Hort. Kew.
|place=2: 139. 1789
|year=1789
}}
|common_names=Prostrate spurge or sandmat
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce prostrata
|authority=(Aiton) Small
|rank=species
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia prostrata
|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 prostrata]]</div></div>
|volume=Volume 12
|mention_page=page 253, 274
|treatment_page=page 285
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with taproot. <b>Stems</b> prostrate to decumbent, usually not mat-forming, 10–30 cm, crisped-villous to glabrate (proximally). <b>Leaves</b> opposite; stipules connate (lower side) or distinct (upper side), triangular-subulate, often lacerate distally, 0.5–1 mm, short crisped-villous to glabrate; petiole 0.5–1.5 mm, usually short crisped-villous, sometimes wooly at distal nodes; blade broadly elliptic to elliptic-oblong, ovate-spatulate, or ovate, 3–11(–15) × 3–6(–8) mm, base slightly asymmetric, rounded to slightly cordate and oblique, margins serrulate at least in distal 1/2, sometimes obscurely so, apex obtuse, abaxial surface finely crisped-villous, adaxial surface usually glabrous or glabrate, sometimes sparsely crisped-villous; 3-veined from base. <b>Cyathia</b> solitary or in small, cymose clusters at distal nodes or on congested, axillary branches; peduncle 1–2 mm. <b>Involucre</b> obconic, 0.6–0.9 × 0.5 mm, crisped-villous or glabrous; glands 4, reddish, oval to oblong, 0.1 × 0.1–0.2 mm; appendages white to pink, rudimentary, 0–0.2 mm, distal margin entire or irregularly scalloped. <b>Staminate</b> flowers 3–6. <b>Pistillate</b> flowers: ovary densely crisped-villous; styles 0.1 mm, 2-fid nearly entire length. <b>Capsules</b> broadly ovoid, 1.2–2 × 1.4–1.5 mm, crisped-villous along keels and toward base, often glabrous between keels; columella 1–1.2 mm. <b>Seeds</b> white but with barely concealed brown surface beneath, ovoid, sharply 4-angled in cross section, abaxial faces plane to convex, adaxial faces concave, 0.8–1.1 × 0.5–0.7 mm, with several narrow, sharp, slightly irregular, transverse ridges. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting early spring–fall.
|habitat=Disturbed areas, fields, gardens, sidewalks, sandy places, ballast piles.
|elevation=0–1400 m.
|distribution=Ala.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Miss.;Mo.;Nebr.;N.Mex.;N.C.;Ohio;Okla.;Pa.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Va.;W.Va.;Wyo.;Mexico;West Indies;Central America;South America;introduced in Eurasia;Africa;Pacific Islands;Australia.
|discussion=<p><i>Euphorbia prostrata</i> is native to tropical America and possibly into the southern part of the flora area. It is likely adventive throughout most of the northern part of its range. It is widely naturalized throughout much of the rest of the tropics.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia prostrata
|authority=Aiton
|rank=species
|parent rank=section
|synonyms=Chamaesyce prostrata
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting early spring–fall.
|habitat=Disturbed areas, fields, gardens, sidewalks, sandy places, ballast piles.
|elevation=0–1400 m.
|distribution=Ala.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Miss.;Mo.;Nebr.;N.Mex.;N.C.;Ohio;Okla.;Pa.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Va.;W.Va.;Wyo.;Mexico;West Indies;Central America;South America;introduced in Eurasia;Africa;Pacific Islands;Australia.
|reference=None
|publication title=Hort. Kew.
|publication year=1789
|special status=Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V12/V12_488.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia prostrata
}}<!--

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