View source for Pediocactus simpsonii

{{Treatment/ID
|accepted_name=Pediocactus simpsonii
|accepted_authority=(Engelmann) Britton & Rose in N. L. Britton and A. Brown
|publications={{Treatment/Publication
|title=in N. L. Britton and A. Brown, Ill. Fl. N. U.S. ed.
|place=2, 2: 570. 1913
|year=1913
}}
|common_names=Mountain cactus;Simpson’s footcactus;Simpon’s hedgehog cactus
|basionyms={{Treatment/ID/Synonym
|name=Echinocactus simpsonii
|authority=Engelmann
}}
|synonyms={{Treatment/ID/Synonym
|name=Echinocactus simpsonii var. minor
|authority=Engelmann
}}{{Treatment/ID/Synonym
|name=Echinocactus simpsonii var. robustior
|authority=J. M. Coulter
}}{{Treatment/ID/Synonym
|name=Mammillaria simpsonii
|authority=unknown
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii subsp. bensonii
|authority=(Engelmann) Hochstätter
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii var. hermannii
|authority=(W. T. Marshall) W. T. Marshall
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii subsp. idahoensis
|authority=Hochstätter
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii var. indraianus
|authority=Hochstätter
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii subsp. robustior
|authority=(J. M. Coulter) Hochstätter
}}{{Treatment/ID/Synonym
|name=Pediocactus simpsonii var. robustior
|authority=(Engelmann) L. D. Benson
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Pediocactus;Pediocactus simpsonii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cactaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Cactaceae subfam. Cactoideae]]</div><div class="higher-taxon"><small>genus</small>[[Pediocactus]]</div><div class="higher-taxon"><small>species</small>[[Pediocactus simpsonii]]</div></div>
|volume=Volume 4
|mention_page=page 212, 215
|treatment_page=page 214
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>only occasionally branched. <b>Stems</b> depressed-ovoid to ovoid or globose, 2.5–15(–25) × 2.5–15 cm; areoles circular to oval, villous. <b>Spines</b> smooth, relatively hard, distinguishable as radial and central; radial spines 15–35 per areole, widely spreading, white, slender, 3–13 mm; central spines 4–11 per areole, reddish brown (rarely black) with basal 1/2 cream or yellow, rigid, straight or slightly curved, 5–21 × 0.3 mm. <b>Flowers</b> 1.2–3 × 1–2.5 cm; scales and outer tepals minutely toothed and laciniate or entire and often undulate; outer tepals with greenish brown midstripes, oblong-cuneate, 9–20 × 3–5(–6) mm; inner tepals white, pink, magenta, yellow, or yellow-green, 12–25 × 4.5–6(–9) mm. <b>Fruits</b> green tinged with red, drying reddish brown, short cylindric, 6–11 × 5–10 mm. <b>Seeds</b> gray to black, 2–3 × 1.5–2 mm, papillate but not rugose.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–early summer.
|habitat=Pinyon-juniper woodlands, sagebrush, montane, and prairie grasslands, coniferous forests
|elevation=1400-3500 m
|distribution=Ariz.;Colo.;Idaho;Mont.;Nev.;N.Mex.;S.Dak.;Utah;Wyo.
|discussion=<p>Pediocactus simpsonii is an exceedingly variable species. The segregation of the many forms, varieties, and subspecies on the basis of morphology, however, is difficult to support, given the continuous range of variation in stem size and flower color over its geographic range. The species has the widest distribution of any Pediocactus, and is found at the highest elevation.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pediocactus simpsonii
|author=
|authority=(Engelmann) Britton & Rose in N. L. Britton and A. Brown
|rank=species
|parent rank=genus
|synonyms=Echinocactus simpsonii var. minor;Echinocactus simpsonii var. robustior;Mammillaria simpsonii;Pediocactus simpsonii subsp. bensonii;Pediocactus simpsonii var. hermannii;Pediocactus simpsonii subsp. idahoensis;Pediocactus simpsonii var. indraianus;Pediocactus simpsonii subsp. robustior;Pediocactus simpsonii var. robustior
|basionyms=Echinocactus simpsonii
|family=Cactaceae
|phenology=Flowering spring–early summer.
|habitat=Pinyon-juniper woodlands, sagebrush, montane, and prairie grasslands, coniferous forests
|elevation=1400-3500 m
|distribution=Ariz.;Colo.;Idaho;Mont.;Nev.;N.Mex.;S.Dak.;Utah;Wyo.
|reference=None
|publication title=in N. L. Britton and A. Brown, Ill. Fl. N. U.S. ed.
|publication year=1913
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_401.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Pediocactus
|species=Pediocactus simpsonii
}}<!--

-->[[Category:Treatment]][[Category:Pediocactus]]