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>Euphorbia acuta is easily distinguished in the field by its relatively large, strongly involute, hairy, and acutely pointed leaves. The name Euphorbia acuta Engelmann has been proposed for conservation against the earlier name E. acuta 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/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V12/V12_399.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia acuta
}}<!--

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