View source for Euphorbia porteriana

{{Treatment/ID
|accepted_name=Euphorbia porteriana
|accepted_authority=(Small) Oudejans
|publications={{Treatment/Publication
|title=Phytologia
|place=67: 48. 1989
|year=1989
}}
|common_names=Porter’s sandmat
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms={{Treatment/ID/Basionym
|name=Chamaesyce porteriana
|authority=Small
|rank=species
|publication_title=Fl. S.E. U.S.
|publication_place=711, 1333. 1903
}}
|synonyms={{Treatment/ID/Synonym
|name=C. porteriana var. scoparia
|authority=(Small) D. G. Burch
|rank=variety
}} {{Treatment/ID/Synonym
|name=C. scoparia
|authority=Small
|rank=species
}}
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Anisophyllum;Euphorbia porteriana
|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 porteriana]]</div></div>
|volume=Volume 12
|mention_page=page 238, 256, 258, 261, 268
|treatment_page=page 285
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> usually annual, sometimes perennial, with slender to occasionally thickened taproot, 5 mm diam.. <b>Stems</b> erect to ascending, sometimes slightly woody at base, not mat-forming, 15–60 cm, usually glabrous, young branches rarely very sparsely short pubescent. <b>Leaves</b> opposite; stipules usually distinct, occasionally connate basally, triangular, entire or 2–4 parted, apically ciliate, 0.3–0.4 mm, usually glabrous, rarely very sparsely short pubescent; petiole 0.5–1.5 mm, usually glabrous, rarely very sparsely short pubescent; blade ovate, oval, elliptic, oblong-elliptic, or linear-elliptic, 4–12 × 1–7 mm, base asymmetric, rounded or subcordate, margins usually entire, rarely sparsely serrate, apex obtuse to acute, sometimes mucronate, surfaces abaxially often purple or red, adaxially green, usually glabrous, rarely very sparsely short pubescent; 3-veined from base, only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes; peduncle 0.5–1.1 mm. <b>Involucre</b> turbinate to campanulate, 0.7–1 × 0.8–1 mm, usually glabrous, rarely very sparsely short pubescent; glands 4, brown, slightly concave, elliptic-oblong, 0.1–0.2 × 0.3–0.6 mm; appendages white or pink to dark red, usually oblong or flabellate, occasionally rudimentary and forming narrow rim at edge of gland, (0–)0.1–0.2 × 0.4–1 mm, distal margin entire or crenulate. <b>Staminate</b> flowers 8–14. <b>Pistillate</b> flowers: ovary glabrous, subtended by triangular calyxlike structure; styles 0.4–0.6 mm, 2-fid 1/2 length. <b>Capsules</b> broadly ovoid, 1–1.5 × 1.7–2.1 mm, glabrous; columella 1–1.4 mm. <b>Seeds</b> reddish brown, ovoid, 4-angled in cross section, 0.7–1 × 0.6–0.7 mm, smooth or obscurely wrinkled.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting year-round.
|habitat=Pine rocklands, coastal scrub, open hammocks.
|elevation=0–10 m.
|distribution=Fla.
|discussion=<p><i>Euphorbia porteriana</i> is found in Miami-Dade County and on Big Pine Key, Monroe County. This species is closely related to <i>E. blodgettii</i>, <i>E. garberi</i>, and <i>E. serpens</i>. The capsules of <i>E. porteriana</i> are almost always completely glabrous, but the authors have seen three specimens with just a few scattered hairs on the keels. A. Herndon (1993) synonymized <i>E. porteriana</i> var. keyensis under <i>E. garberi</i> because of its uniformly hairy capsules, and that treatment is followed here.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia porteriana
|authority=(Small) Oudejans
|rank=species
|parent rank=section
|synonyms=C. porteriana var. scoparia;C. scoparia
|basionyms=Chamaesyce porteriana
|family=Euphorbiaceae
|phenology=Flowering and fruiting year-round.
|habitat=Pine rocklands, coastal scrub, open hammocks.
|elevation=0–10 m.
|distribution=Fla.
|reference=None
|publication title=Phytologia
|publication year=1989
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V12/V12_684.xml
|genus=Euphorbia
|section=Euphorbia sect. Anisophyllum
|species=Euphorbia porteriana
}}<!--

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