View source for Epithelantha micromeris var. micromeris

{{Treatment/ID
|accepted_name=Epithelantha micromeris var. micromeris
|accepted_authority=
|publications=
|common_names=Common button cactus
|basionyms=
|synonyms=
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Epithelantha;Epithelantha micromeris;Epithelantha micromeris var. micromeris
|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>[[Epithelantha]]</div><div class="higher-taxon"><small>species</small>[[Epithelantha micromeris]]</div><div class="higher-taxon"><small>variety</small>[[Epithelantha micromeris var. micromeris]]</div></div>
|volume=Volume 4
|mention_page=page 238
|treatment_page=page 240
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>usually unbranched, appearing ashy gray and rough in general aspect. <b>Stems</b> short cylindric to ovoid, (1.3–)2–3.8 cm diam. <b>Spines</b> 20–35(–40) per areole, in 1–3 series, mature lateral spine clusters grayish or purplish white with brown bases, collectively appearing as brown spot at center of each spine cluster, 4–5(–7) mm diam.; longest intact spines near apex of stem 3–12 mm; worn spines 1–3 mm. <b>Flowers</b> partially obscured by longer spines at stem apex, 6–8.5 × 3–4.6 mm; inner tepals 5–8 per flower, (1–)2.5–3.5 × 1–2 mm; stamens 15–16. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering late winter–early spring (Feb–Apr); fruiting late spring–early summer (Apr–Jun).
|habitat=Woodlands, deserts, grasslands, crevices, coarse gravel, cliffs, sedimentary (rarely igneous) substrates
|elevation=500-1800 m
|distribution=Ariz.;N.Mex.;Tex.
|discussion=<p><i>Epithelantha micromeris </i>var.<i> micromeris</i> has the smallest flowers of any cactus species in the flora. Unlike other taxa in this genus, it is autogamous. No hybrids with <i>E. bokei</i> have been found. The spines of var. <i></i>var.<i> micromeris</i> are never as strongly appressed as on <i>E. bokei</i> except on sexually immature plants less than 15 mm in diameter; those immature plants have the fewest spines.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Epithelantha micromeris var. micromeris
|authority=
|rank=variety
|parent rank=species
|synonyms=
|basionyms=
|family=Cactaceae
|phenology=Flowering late winter–early spring (Feb–Apr); fruiting late spring–early summer (Apr–Jun).
|habitat=Woodlands, deserts, grasslands, crevices, coarse gravel, cliffs, sedimentary (rarely igneous) substrates
|elevation=500-1800 m
|distribution=Ariz.;N.Mex.;Tex.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_437.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Epithelantha
|species=Epithelantha micromeris
|variety=Epithelantha micromeris var. micromeris
}}<!--

-->[[Category:Treatment]][[Category:Epithelantha micromeris]]