View source for Euphorbia bilobata

{{Treatment/ID
|accepted_name=Euphorbia bilobata
|accepted_authority=Engelmann in W. H. Emory
|publications={{Treatment/Publication
|title=Rep. U.S. Mex. Bound.
|place=2(1): 190. 1859
|year=1859
}}
|common_names=Blackseed spurge
|special_status={{Treatment/ID/Special_status
|code=W
|label=Weedy
}}{{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Euphorbiaceae;Euphorbia;Euphorbia sect. Alectoroctonum;Euphorbia bilobata
|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. Alectoroctonum]]</div><div class="higher-taxon"><small>species</small>[[Euphorbia bilobata]]</div></div>
|volume=Volume 12
|mention_page=page 241, 244
|treatment_page=page 243
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual, with slender taproot. <b>Stems</b> erect, branched, 10–35 cm, glabrous or strigillose (especially when young and around nodes). <b>Leaves</b> opposite proximally, alternate distally; stipules 0.1–0.2 mm; petiole 1–4(–6) mm, glabrous, sericeous or strigillose; blade linear to narrowly elliptic, 8–52 × 2–7 mm, base attenuate, margins entire, ciliate-strigose, apex acute, abaxial surface sparsely strigillose to sericeous, adaxial surface usually glabrous; venation obscure, only midvein conspicuous. <b>Cyathia</b> solitary at distal nodes or in weakly defined cymes or dichasia, dichasial bracts and distal stem leaves wholly green; peduncle 0.5–3.6 mm, strigillose. <b>Involucre</b> obconic, 0.9–1.5 × 0.9–1.3 mm, strigillose to pilose; glands 5, yellow or pink, U-shaped, 0.2–0.3 × 0.4–0.5 mm; appendages greenish, white, or pink, forming narrow rim around gland, or ovate, oblong, or obovate and usually 2-fid, rarely rudimentary, 0.2–1.4 × 0.2–0.6 mm, entire. <b>Staminate</b> flowers 20–25. <b>Pistillate</b> flowers: ovary glabrous, puberulent, strigillose, or pilose; styles 0.5–0.8 mm, 2-fid 1/3–1/2 length. <b>Capsules</b> oblate, 1.5–2.6 × 2.1–3.3 mm, glabrous or puberulent, strigillose, or pilose; columella 1.2–2.1 mm. <b>Seeds</b> brown to grayish black, narrowly ovoid, 3- or 4-angled in cross section, sometimes obscurely so, 1.3–1.9 × 1–1.4 mm, tuberculate, often with shallow depressions; caruncle absent. <b>2n</b> = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering and fruiting spring–fall.
|habitat=Sandy and rocky soils on slopes and canyon bottoms in pine-juniper woodlands, oak woodlands, grasslands.
|elevation=1400–2600 m.
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Durango;Sonora).
|discussion=<p>In Texas, <i>Euphorbia bilobata</i> is known only from Jeff Davis County.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Euphorbia bilobata
|author=
|authority=Engelmann in W. H. Emory
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Euphorbiaceae
|phenology=Flowering and fruiting spring–fall.
|habitat=Sandy and rocky soils on slopes and canyon bottoms in pine-juniper woodlands, oak woodlands, grasslands.
|elevation=1400–2600 m.
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Durango;Sonora).
|reference=None
|publication title=Rep. U.S. Mex. Bound.
|publication year=1859
|special status=Weedy;Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V12/V12_89.xml
|genus=Euphorbia
|section=Euphorbia sect. Alectoroctonum
|species=Euphorbia bilobata
}}<!--

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