View source for Euphorbia nutans

{{Treatment/ID
|accepted_name=Euphorbia nutans
|accepted_authority=Lagasca
|publications={{Treatment/Publication
|title=Gen. Sp. Pl.,
|place=17. 1816
|year=1816
}}
|common_names=Nodding or upright spotted spurge;eyebane
|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 lansingii
|authority=Millspaugh
}} {{Treatment/ID/Synonym
|name=C. nutans
|authority=(Lagasca) Small
}} {{Treatment/ID/Synonym
|name=Euphorbia lansingii
|authority=(Millspaugh) Brühl
}} {{Treatment/ID/Synonym
|name=E. preslii
|authority=Gussone
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia nutans
|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 nutans]]</div></div>
|volume=Volume 12
|mention_page=page 256, 276, 279
|treatment_page=page 278
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with taproot. <b>Stems</b> usually ascending, occasionally erect, often arched at tips, 20–80 cm, sparsely to moderately pilose to villous or with short, incurved hairs, hairs often concentrated at nodes and distally, occasionally in 2 bands along opposite sides of stem. <b>Leaves</b> opposite; stipules usually distinct, sometimes connate basally on one side of stem, small scales, irregularly toothed, fringed, or divided, 1–1.5 mm, sparsely to moderately villous distally; petiole 0.3–1.6 mm, moderately pilose to villous; blade oblong to oblong-lanceolate, 8–40 × 3–12 mm, base asymmetric, one side usually angled or rounded, other side ± truncate to cordate-auriculate, margins serrulate, apex angled with blunt tip, abaxial surface pale green or faintly to strongly reddish tinged, adaxial surface usually reddish-mottled or with conspicuous reddish spot, both surfaces usually sparsely to moderately pilose, especially toward base, sometimes glabrous; 3–5-veined from base, pinnate distally, veins faint. <b>Cyathia</b> solitary at distal nodes or in small, cymose clusters at branch tips; peduncle 0.5–2.5 mm. <b>Involucre</b> narrowly obconic, 0.5–1 × 0.3–0.7 mm, glabrous; glands 4, usually green, sometimes reddish purple, oblong to nearly circular, 0.2–0.4 × 0.3–0.5 mm; appendages white or pinkish, ovate to broadly elliptic, 0.2–1 × 0.2–1.5 mm, distal margin entire. <b>Staminate</b> flowers 5–28. <b>Pistillate</b> flowers: ovary glabrous; styles 0.6–2.5 mm, 2-fid 1/2 length. <b>Capsules</b> ovoid, 1.6–2.3 × 1.5–2.4 mm, glabrous; columella 1.4–1.6 mm. <b>Seeds</b> dark brown, sometimes with thin, white coating (often more persistent along angles than faces), elliptic-ovoid to ovoid, rounded-angular in cross section, 1–1.6 × 0.5–0.8 mm, surface finely and irregularly wrinkled, sometimes faintly so, or with indistinct, shallow, rounded cross ridges. <b>2n</b> = 12, 14, 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting spring–early fall.
|habitat=Stream banks, pond edges, disturbed portions of upland prairies, mesic to dry upland forest openings, pastures, fallow fields, railroads, roadsides, gardens, disturbed areas.
|elevation=0–1600 m.
|distribution=Ont.;Que.;Ala.;Ark.;Calif.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Central America;South America;introduced in Eurasia.
|discussion=<p><i>Euphorbia nutans</i> is probably native to at least central and eastern North America, but given its strongly weedy tendencies, it is difficult to know where it may be adventive in parts of the flora area. It is certainly introduced where it occurs in the Old World and probably in South America as well. D. G. Burch (1966) discussed the problems of assigning names to the four main entities in this nomenclatural complex (<i>E. hypericifolia</i>, <i>E. hyssopifolia</i>, <i>E. lasiocarpa</i>, and <i>E. nutans</i>) and determined that the oldest valid name for the relatively robust, temperate North American plants with ascending stems is <i>E. nutans</i>. See the treatment of 56. <i>E. maculata</i> for a discussion of the misapplication of that name to <i>E. nutans</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia nutans
|author=
|authority=Lagasca
|rank=species
|parent rank=section
|synonyms=Chamaesyce lansingii;C. nutans;Euphorbia lansingii;E. preslii
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting spring–early fall.
|habitat=Stream banks, pond edges, disturbed portions of upland prairies, mesic to dry upland forest openings, pastures, fallow fields, railroads, roadsides, gardens, disturbed areas.
|elevation=0–1600 m.
|distribution=Ont.;Que.;Ala.;Ark.;Calif.;Conn.;Del.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Vt.;Va.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Central America;South America;introduced in Eurasia.
|reference=None
|publication title=Gen. Sp. Pl.,
|publication year=1816
|special status=Weedy;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_689.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia nutans
}}<!--

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