View source for Atriplex gardneri var. aptera

{{Treatment/ID
|accepted_name=Atriplex gardneri var. aptera
|accepted_authority=(A. Nelson) S. L. Welsh & Crompton
|publications={{Treatment/Publication
|title=Great Basin Naturalist
|place=55: 326. 1995
|year=1995
}}
|common_names=Nelson’s saltbush
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Atriplex aptera
|authority=A. Nelson
|rank=species
|publication_title=Bot. Gaz.
|publication_place=34: 356. 1902
}}
|synonyms={{Treatment/ID/Synonym
|name=Atriplex canescens subsp. aptera
|authority=(A. Nelson) H. M. Hall & Clements
|rank=subspecies
}}
|hierarchy=Chenopodiaceae;Atriplex;Atriplex subg. Pterochiton;Atriplex gardneri;Atriplex gardneri var. aptera
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Chenopodiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Atriplex]]</div><div class="higher-taxon"><small>subgenus</small>[[Atriplex subg. Pterochiton]]</div><div class="higher-taxon"><small>species</small>[[Atriplex gardneri]]</div><div class="higher-taxon"><small>variety</small>[[Atriplex gardneri var. aptera]]</div></div>
|volume=Volume 4
|mention_page=page 372
|treatment_page=page 374
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Subshrubs,</b> dioecious or sparingly monoecious, mainly 2–5 dm. <b>Stems</b> mainly from a basal crown. <b>Leaves</b> deciduous or tardily so, alternate or proximal ones opposite, sessile or subsessile; blade green to yellow-green, oblanceolate to elliptic or spatulate, 15–40 × 6–12 mm, 2–6 times longer than wide. <b>Staminate</b> flowers yellow, in glomerules 3 mm thick, in terminal or axillary spikes or spicate panicles to 12 cm. <b>Pistillate</b> flowers in spicate panicles 8–25 cm. <b>Fruiting</b> bracteoles sessile or on stipes to 5 mm, body basically ellipsoid, bearing 4 deeply lobed lateral wings or rows of flattened tubercles to 4 mm high, 4–8 mm and as wide, apex 1.5 mm, with 2–4 lateral smaller teeth, wings, sometimes vestigial, rarely absent. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall.
|habitat=Saline, often moist, fine-textured substrates
|elevation=400-1100 m
|distribution=Alta.;Sask.;Mont.;Nebr.;N.Dak.;S.Dak.;Wyo.
|discussion=<p><i>Atriplex gardneri </i>var.<i> aptera</i> is a Great Plains-Steppe endemic.</p><!--
--><p>The concept of <i>Atriplex</i> aptera is based on recurring and at least partially stabilized introgressant populations derived through hybridization between <i>A. gardneri</i> and <i>A. canescens</i>. Hence, the plants do not form a traditionally conceived taxon in the sense of being monophyletic. They are, however, of frequent occurrence, evidently fertile and long lived, and are taxon-like in distribution. While intermediate in many ways, they are habitually most similar to <i>A. gardneri</i> but bear yellow staminate flowers and the fruiting bracteoles are either winged as in <i>A. canescens</i> or the tubercles are aligned in four rows. They tend to occupy similar saline habitats as those occupied by <i>A. gardneri</i>. Despite the origin of the A. aptera material, and regardless of its local abundance, it does not appear to overwhelm either of the parental species. Staminate specimens of A. aptera are difficult, if not impossible, to distinguish from <i>A. gardneri </i>var.<i> gardneri</i> or <i>A. canescens</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Atriplex gardneri var. aptera
|authority=(A. Nelson) S. L. Welsh & Crompton
|rank=variety
|parent rank=species
|synonyms=Atriplex canescens subsp. aptera
|basionyms=Atriplex aptera
|family=Chenopodiaceae
|phenology=Flowering summer–fall.
|habitat=Saline, often moist, fine-textured substrates
|elevation=400-1100 m
|distribution=Alta.;Sask.;Mont.;Nebr.;N.Dak.;S.Dak.;Wyo.
|reference=None
|publication title=Great Basin Naturalist
|publication year=1995
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_738.xml
|genus=Atriplex
|subgenus=Atriplex subg. Pterochiton
|species=Atriplex gardneri
|variety=Atriplex gardneri var. aptera
}}<!--

-->[[Category:Treatment]][[Category:Atriplex gardneri]]