View source for Euphorbia glyptosperma

{{Treatment/ID
|accepted_name=Euphorbia glyptosperma
|accepted_authority=Engelmann in W. H. Emory
|publications={{Treatment/Publication
|title=Rep. U.S. Mex. Bound.
|place=2(1): 187. 1859
|year=1859
}}
|common_names=Ribseed sandmat
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce glyptosperma
|authority=(Engelmann) Small
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia glyptosperma
|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 glyptosperma]]</div></div>
|volume=Volume 12
|mention_page=page 255, 268, 288
|treatment_page=page 269
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with taproot. <b>Stems</b> prostrate, loosely mat-forming, 5–40 cm, glabrous, sometimes slightly glaucous. <b>Leaves</b> opposite; stipules usually distinct, linear-subulate, usually irregularly fringed or lobed, rarely laciniate, 0.4–2 mm, glabrous; petiole 0.2–2 mm, glabrous; blade narrowly oblong to oblong-obovate or oblong-ovate, 3–15 × 2–7 mm, base asymmetric, one side angled and other rounded to shallowly cordate, margins minutely sparsely serrulate, especially near apex and on longer side, apex rounded to obtuse, abaxial surface usually pale grayish green, adaxial surface sometimes reddish tinged or with reddish blotch, both surfaces glabrous; palmately veined at base, pinnate distally. <b>Cyathia</b> solitary or in small, cymose clusters at distal nodes; peduncle 0.5–1.6 mm. <b>Involucre</b> obconic, 0.6–0.9 × 0.3–0.6 mm, glabrous; glands 4, red to purple, narrowly oblong-elliptic, 0.1–0.2 × 0.1–0.5 mm; appendages white or pinkish tinged, semilunate and fringing distal margin of gland, 0.1–0.3 × 0.1–0.3 mm, distal margin usually irregularly crenulate or lobed. <b>Staminate</b> flowers 1–5. <b>Pistillate</b> flowers: ovary glabrous; styles 0.1–0.3 mm, 2-fid 1/2 length. <b>Capsules</b> broadly ovoid, 1.3–1.9 × 1.6–2 mm, glabrous; columella 1.3–1.5 mm. <b>Seeds</b> with thin white coat that readily falls off, surface below tan brown, oblong-ovoid, sharply angular in cross section, 1–1.4 × 0.6–0.9 mm, with 3–4(–6) prominent transverse ridges that usually interrupt abaxial keel. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting early summer–fall.
|habitat=Stream and river banks, sand prairies, loess hill prairies, meadows, ballast, open disturbed areas, roadsides.
|elevation=0–1800 m.
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ariz.;Calif.;Colo.;Conn.;Idaho;Ill.;Ind.;Iowa;Kans.;La.;Maine;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.Mex.;N.Y.;N.Dak.;Okla.;Oreg.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Wash.;Wis.;Wyo.;Mexico (Chihuahua;Coahuila;Tamaulipas;Zacatecas).
|discussion=<p><i>Euphorbia glyptosperma</i> is one of the most widespread species of the genus in North America, and it is often quite weedy. It is likely native to much of the central United States, but in areas like eastern Canada, it occurs in highly disturbed habitats, and it may be adventive there. <i>Euphorbia glyptosperma</i> is characterized by its prominently ridged seeds, laciniate stipules, complete lack of pubescence, and somewhat obscure toothing near the tips of the leaves.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia glyptosperma
|author=
|authority=Engelmann in W. H. Emory
|rank=species
|parent rank=section
|synonyms=Chamaesyce glyptosperma
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting early summer–fall.
|habitat=Stream and river banks, sand prairies, loess hill prairies, meadows, ballast, open disturbed areas, roadsides.
|elevation=0–1800 m.
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ariz.;Calif.;Colo.;Conn.;Idaho;Ill.;Ind.;Iowa;Kans.;La.;Maine;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.Mex.;N.Y.;N.Dak.;Okla.;Oreg.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Wash.;Wis.;Wyo.;Mexico (Chihuahua;Coahuila;Tamaulipas;Zacatecas).
|reference=None
|publication title=Rep. U.S. Mex. Bound.
|publication year=1859
|special status=Weedy;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V12/V12_300.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia glyptosperma
}}<!--

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