View source for Euphorbia micromera

{{Treatment/ID
|accepted_name=Euphorbia micromera
|accepted_authority=Boissier
|publications={{Treatment/Publication
|title=Proc. Amer. Acad. Arts
|place=5: 171. 1861
|year=1861
}}
|common_names=Desert spurge;Sonoran or tiny sandmat
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Chamaesyce micromera
|authority=(Boissier) Wooton & Standley
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia micromera
|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 micromera]]</div></div>
|volume=Volume 12
|mention_page=page 254, 258, 270, 281
|treatment_page=page 278
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with slender taproot. <b>Stems</b> prostrate, mat-forming, 5–35 cm, glabrous or shortly pilose. <b>Leaves</b> opposite; stipules distinct, subulate, 0.2–0.4 mm, pilose; petiole 0.5–1.2 mm, glabrous or pilose; blade ovate to elliptic, 6–15 × 2–4 mm, base asymmetric, one side cuneate to rounded, other side rounded, margins entire, apex obtuse, surfaces glabrous or pilose; venation obscure or only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes; peduncle 0.4–1.4 mm. <b>Involucre</b> campanulate, 0.4–0.6 × 0.5–0.9 mm, glabrous or pilose; glands 4, red, circular to oblong, 0.1 × 0.1–0.2 mm; appendages absent. <b>Staminate</b> flowers 2–5. <b>Pistillate</b> flowers: ovary usually glabrous, rarely pilose; styles 0.1–0.2 mm, 2-fid at apex. <b>Capsules</b> oblong, 1.3–1.5 × 1.1–1.3 mm, usually glabrous, rarely pilose; columella 1–1.2 mm. <b>Seeds</b> light gray, narrowly ovoid, 4-angled in cross section, 0.9–1 × 0.5–0.6 mm, smooth to slightly rugose or with 1–4 faint transverse ridges that do not pass through abaxial keel.</span><!--

-->{{Treatment/Body
|phenology=Flowering nearly year-round in response to sufficient rainfall.
|habitat=Desert scrub, riparian woods with ash and willow, saltbush scrub, Joshua tree woodlands and grasslands, often in sandy or gravelly areas.
|elevation=-20–1800 m.
|distribution=Ariz.;Calif.;Nev.;N.Mex.;Tex.;Utah;Mexico (Baja California;Baja California Sur;Chihuahua;Coahuila;Durango;Sonora).
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia micromera
|author=
|authority=Boissier
|rank=species
|parent rank=section
|synonyms=Chamaesyce micromera
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering nearly year-round in response to sufficient rainfall.
|habitat=Desert scrub, riparian woods with ash and willow, saltbush scrub, Joshua tree woodlands and grasslands, often in sandy or gravelly areas.
|elevation=-20–1800 m.
|distribution=Ariz.;Calif.;Nev.;N.Mex.;Tex.;Utah;Mexico (Baja California;Baja California Sur;Chihuahua;Coahuila;Durango;Sonora).
|reference=None
|publication title=Proc. Amer. Acad. Arts
|publication year=1861
|special status=Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_964.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia micromera
}}<!--

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