View source for Euphorbia arizonica

{{Treatment/ID
|accepted_name=Euphorbia arizonica
|accepted_authority=Engelmann in W. H. Emory
|publications={{Treatment/Publication
|title=Rep. U.S. Mex. Bound.
|place=2(1): 186. 1859
|year=1859
}}
|common_names=Arizona sandmat
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce arizonica
|authority=(Engelmann) Arthur
|rank=species
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia arizonica
|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 arizonica]]</div></div>
|volume=Volume 12
|mention_page=page 254
|treatment_page=page 260
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual or short-lived perennial, with slender to slightly thickened taproot. <b>Stems</b> erect to ascending, 10–30 cm, uniformly pilose with glistening hairs. <b>Leaves</b> opposite; stipules distinct, deltate, (0–)0.1 mm, glabrous or with few scattered hairs; petiole 0.4–1.5 mm, pilose with glistening hairs; blade usually ovate, rarely elliptic, 3–11 × 2–7 mm, base asymmetric, one side cuneate to rounded, other side rounded to strongly cordate, margins entire, apex obtuse or acute, surfaces pilose with glistening hairs; 3-veined from base but usually only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes; peduncle 0.7–3.6 mm. <b>Involucre</b> urceolate, 1.1–1.3 × 0.5–0.9 mm, glabrous or pilose with glistening hairs; glands 4, dark maroon, usually oblong to reniform, rarely almost circular, 0.2 × 0.2–0.4 mm; appendages white to pink, oblong, flabellate, oblong, or elliptic, 0.3–0.6 × 0.6–0.9 mm, distal margin entire or crenulate. <b>Staminate</b> flowers 5–12. <b>Pistillate</b> flowers: ovary pilose, styles 0.5–0.6 mm, 2-fid 1/2 length. <b>Capsules</b> broadly ovoid to subglobose, 1.4–1.8 mm diam., pilose; columella 1.1–1.4 mm. <b>Seeds</b> gray to light brown, ovoid, 4-angled in cross section, 0.9–1.1 × 0.5–0.6 mm, rugose with 2–5 irregular transverse ridges that sometimes pass through abaxial keel.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting year-round in response to sufficient moisture.
|habitat=Washes and rocky slopes, sometimes on limestone, desert scrub communities often with creosote-bush, riparian forests, mesquite woodlands, oak chaparral.
|elevation=100–1400 m.
|distribution=Ariz.;Calif.;N.Mex.;Tex.;Mexico (Baja California;Baja California Sur;Chihuahua;Coahuila;Durango;Sonora).
|discussion=<p><i>Euphorbia arizonica</i> is distinctive and easily recognized by its glistening, translucent hairs that appear somewhat glutinous and are most apparent on the stems.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia arizonica
|authority=Engelmann in W. H. Emory
|rank=species
|parent rank=section
|synonyms=Chamaesyce arizonica
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting year-round in response to sufficient moisture.
|habitat=Washes and rocky slopes, sometimes on limestone, desert scrub communities often with creosote-bush, riparian forests, mesquite woodlands, oak chaparral.
|elevation=100–1400 m.
|distribution=Ariz.;Calif.;N.Mex.;Tex.;Mexico (Baja California;Baja California Sur;Chihuahua;Coahuila;Durango;Sonora).
|reference=None
|publication title=Rep. U.S. Mex. Bound.
|publication year=1859
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V12/V12_28.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia arizonica
}}<!--

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