View source for Euphorbia acuta

{{Treatment/ID
|accepted_name=Euphorbia acuta
|accepted_authority=Engelmann in W. H. Emory
|publications={{Treatment/Publication
|title=Rep. U.S. Mex. Bound.
|place=2(1): 189. 1859
|year=1859
}}
|common_names=Pointed sandmat
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce acuta
|authority=Millspaugh
}} {{Treatment/ID/Synonym
|name=Euphorbia acuta var. stenophylla
|authority=Boissier
}} {{Treatment/ID/Synonym
|name=E. georgei
|authority=Oudejans
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia acuta
|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 acuta]]</div></div>
|volume=Volume 12
|mention_page=page 239, 251, 252, 254, 260
|treatment_page=page 259
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, with strongly thickened rootstock. <b>Stems</b> ascending to erect, 5–30 cm, uniformly and densely canescent or sericeous. <b>Leaves</b> opposite; stipules deciduous, sometimes appearing absent, distinct, brown, linear-subulate, thin, 0.3–0.8 mm, canescent; petiole 0.4–1.2 mm, moderately to densely canescent; blade ovate to lanceolate, 6–20 × 3–8 mm, base subsymmetric, rounded to cuneate, margins entire, strongly involute, apex long-acuminate, spinulose, abaxial surface canescent to densely sericeous, adaxial surface glabrous or sparsely canescent; 3-veined from base but only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes; peduncle 1.3–3.2 mm. <b>Involucre</b> turbinate to urceolate, 2–2.6 × 1.7–2.5 mm, villous to lanate; glands 4, yellow-green to orange or red, slightly concave, oblong-elliptic, 0.2–0.4 × 0.6–1.5 mm; appendages white, flabellate, 1.1–2.1 × 0.2–0.6 mm, distal margin shallowly and irregularly toothed. <b>Staminate</b> flowers 20–25. <b>Pistillate</b> flowers: ovary strigose, pubescent to villous; styles 0.6–0.9 mm, 2-fid 1/2 length. <b>Capsules</b> subglobose to broadly ovoid, 2.8–3.7 mm diam., strigose, pubescent to villous; columella 2.3–3 mm. <b>Seeds</b> white, ovoid, 4-angled in cross section, 2.2–2.6 × 1.1–1.4 mm, smooth to finely reticulate. <b>2n</b> = 28, 48, 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting spring–fall.
|habitat=Desert scrub, grasslands, oak-juniper savannas, limestone, rocky, sandy, or clay soils.
|elevation=400–1900 m.
|distribution=N.Mex.;Tex.;Mexico (Chihuahua;Coahuila).
|discussion=<p><i>Euphorbia acuta</i> is easily distinguished in the field by its relatively large, strongly involute, hairy, and acutely pointed leaves. The name <i>Euphorbia acuta</i> Engelmann has been proposed for conservation against the earlier name <i>E. acuta</i> Bellardi ex Colla (P. E. Berry et al. 2011).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia acuta
|author=
|authority=Engelmann in W. H. Emory
|rank=species
|parent rank=section
|synonyms=Chamaesyce acuta;Euphorbia acuta var. stenophylla;E. georgei
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting spring–fall.
|habitat=Desert scrub, grasslands, oak-juniper savannas, limestone, rocky, sandy, or clay soils.
|elevation=400–1900 m.
|distribution=N.Mex.;Tex.;Mexico (Chihuahua;Coahuila).
|reference=None
|publication title=Rep. U.S. Mex. Bound.
|publication year=1859
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V12/V12_399.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia acuta
}}<!--

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