View source for Euphorbia discoidalis

{{Treatment/ID
|accepted_name=Euphorbia discoidalis
|accepted_authority=Chapman
|publications={{Treatment/Publication
|title=Fl. South. U.S.,
|place=401. 1860
|year=1860
}}
|common_names=Summer spurge
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Tithymalopsis discoidalis
|authority=(Chapman) Small
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Alectoroctonum;Euphorbia discoidalis
|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. Alectoroctonum]]</div><div class="higher-taxon"><small>species</small>[[Euphorbia discoidalis]]</div></div>
|volume=Volume 12
|mention_page=page 242
|treatment_page=page 245
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, with spreading rootstock. <b>Stems</b> erect or ascending, unbranched, solitary or few, previous year's dead stems not persistent, 45–70 cm, usually densely puberulent to sericeous, rarely glabrous. <b>Leaves</b> alternate; stipules to 0.1 mm; petiole (0–)1–2 mm (or absent), densely puberulent; blade usually linear, rarely ovate, 25–55 × 1.5–4 mm, base cuneate, margins entire, revolute, apex rounded, abaxial surface glabrous or puberulent to sericeous, adaxial surface glabrous; venation often obscure on smaller leaves, midvein conspicuous. <b>Cyathia</b> in terminal pleiochasia; peduncle 5–15 mm, filiform, glabrous or very sparsely puberulent to sericeous. <b>Involucre</b> campanulate, 1.2–1.4 × 1.2–2 mm, sparsely to densely puberulent; glands 5, green, reniform, 0.2–0.3 × 0.5–0.6 mm; appendages white, orbiculate to oblong, (0.5–)1–1.7 × 1–1.5 mm, entire. <b>Staminate</b> flowers 20–25. <b>Pistillate</b> flowers: ovary glabrous or sparsely strigose; styles 0.5–1.1 mm, 2-fid at apex to 1/2 length. <b>Capsules</b> globose, 1.8–3 × 2.5–4.8 mm, glabrous or sparsely strigose; columella 2.3–2.5 mm. <b>Seeds</b> light gray, ovoid, 2 × 1.2–1.3 mm, smooth or with few, very shallow depressions; caruncle absent.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting late spring–fall.
|habitat=Sand hills, pine savannas, woodland borders, open fields with sandy soils.
|elevation=0–150 m.
|distribution=Ala.;Fla.;Ga.;La.;Miss.;Tex.
|discussion=<p>M. J. Huft (1979) remarked that <i>Euphorbia discoidalis</i> is uncommon west of Alabama and referred many narrow-leaved specimens from Louisiana and Texas to <i>E. corollata</i>. K. R. Park (1998) included them in an expanded <i>E. discoidalis</i>, and that is followed here. The western populations can be distinguished from <i>E. corollata</i> by their shorter involucral gland appendages and revolute leaf margins. Further study of these western populations is warranted.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia discoidalis
|author=
|authority=Chapman
|rank=species
|parent rank=section
|synonyms=Tithymalopsis discoidalis
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting late spring–fall.
|habitat=Sand hills, pine savannas, woodland borders, open fields with sandy soils.
|elevation=0–150 m.
|distribution=Ala.;Fla.;Ga.;La.;Miss.;Tex.
|reference=None
|publication title=Fl. South. U.S.,
|publication year=1860
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_464.xml
|genus=Euphorbia
|section=Euphorbia sect. Alectoroctonum
|species=Euphorbia discoidalis
}}<!--

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