View source for Pediocactus knowltonii

{{Treatment/ID
|accepted_name=Pediocactus knowltonii
|accepted_authority=L. D. Benson
|publications={{Treatment/Publication
|title=Cact. Succ. J. (Los Angeles)
|place=32: 193. 1960
|year=1960
}}
|common_names=Knowlton’s minute cactus
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pediocactus bradyi var. knowltonii
|authority=(L. D. Benson) Backeberg
|rank=variety
}} {{Treatment/ID/Synonym
|name=Pediocactus simpsonii var. knowltonii
|authority=(L. D. Benson) Halda
|rank=variety
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Pediocactus;Pediocactus knowltonii
|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 knowltonii]]</div></div>
|volume=Volume 4
|mention_page=page 215
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>branched or unbranched. <b>Stems</b> globular to short cylindric, 0.7–5.5 × 1–3 cm; areoles circular, villous. <b>Spines</b> smooth, relatively hard, all radial, mostly 18–26 per areole, spreading, recurved, or somewhat pectinate, reddish tan, pink, or white, 1–1.5 mm, canescent. <b>Flowers</b> 1–3.5 × 1–2.5 cm; scales and outer tepals essentially entire, often undulate; outer tepals with brownish midstripes to 1.5 mm wide, 4–17 × 4–6 mm; inner tepals pink, oblanceolate, 8–25 × 3–8 mm. <b>Fruits</b> green, drying reddish tan, turbinate,4 × 3 mm. <b>Seeds</b> black, 1.5 × 1–1.2 mm, papillate but not rugose.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Gravel pavements in pinyon-juniper woodlands with mixed sagebrush
|elevation=2000 m
|distribution=N.Mex.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Pediocactus knowltonii</i> is the smallest and rarest member of the genus. The species is very closely related to <i>P. simpsonii</i>; chloroplast DNA sequence analysis provides support that it represents a recent developmental mutation within <i>P. simpsonii</i> (J. M. Porter et al. unpubl.).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pediocactus knowltonii
|authority=L. D. Benson
|rank=species
|parent rank=genus
|synonyms=Pediocactus bradyi var. knowltonii;Pediocactus simpsonii var. knowltonii
|basionyms=
|family=Cactaceae
|phenology=Flowering spring.
|habitat=Gravel pavements in pinyon-juniper woodlands with mixed sagebrush
|elevation=2000 m
|distribution=N.Mex.
|reference=None
|publication title=Cact. Succ. J. (Los Angeles)
|publication year=1960
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_402.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Pediocactus
|species=Pediocactus knowltonii
}}<!--

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