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href="https://de.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – German" lang="de" hreflang="de" data-title="Mammillaria vetula" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – Spanish" lang="es" hreflang="es" data-title="Mammillaria vetula" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – Swedish" lang="sv" hreflang="sv" data-title="Mammillaria vetula" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – Ukrainian" lang="uk" hreflang="uk" data-title="Mammillaria vetula" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – Vietnamese" lang="vi" hreflang="vi" data-title="Mammillaria vetula" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Mammillaria_vetula" title="Mammillaria vetula – Waray" lang="war" hreflang="war" data-title="Mammillaria vetula" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target"><span>Winaray</span></a></li> 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<div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Species of cactus</div> <p class="mw-empty-elt"> </p> <table class="infobox biota" style="text-align: left; width: 200px; font-size: 100%"> <tbody><tr> <th colspan="2" style="color:inherit; text-align: center; background-color: rgb(180,250,180)"><i>Mammillaria vetula</i> </th></tr> <tr> <td colspan="2" style="text-align: center"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Mammillaria_gracilis_02.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Mammillaria_gracilis_02.jpg/220px-Mammillaria_gracilis_02.jpg" decoding="async" width="220" height="175" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Mammillaria_gracilis_02.jpg/330px-Mammillaria_gracilis_02.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Mammillaria_gracilis_02.jpg/440px-Mammillaria_gracilis_02.jpg 2x" data-file-width="1300" data-file-height="1036" /></a></span> </td></tr> <tr> <td colspan="2" style="text-align: center; font-size: 88%"><i>M. vetula</i> subsp. <i>gracilis</i> </td></tr> <tr style="color:inherit; text-align: center; background-color: rgb(180,250,180)"> <th colspan="2"><div style="text-align: center"><a href="/wiki/Conservation_status" title="Conservation status">Conservation status</a></div> </th></tr> <tr> <td colspan="2"><div style="text-align: center"><span class="mw-default-size skin-invert-image" typeof="mw:File/Frameless"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Status_iucn3.1_LC.svg/220px-Status_iucn3.1_LC.svg.png" decoding="async" width="220" height="59" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Status_iucn3.1_LC.svg/330px-Status_iucn3.1_LC.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Status_iucn3.1_LC.svg/440px-Status_iucn3.1_LC.svg.png 2x" data-file-width="512" data-file-height="137" /></span></span><br /><a href="/wiki/Least_Concern" class="mw-redirect" title="Least Concern">Least Concern</a> <small> (<a href="/wiki/IUCN_Red_List" title="IUCN Red List">IUCN 3.1</a>)<sup id="cite_ref-iucn_status_12_November_2021_1-0" class="reference"><a href="#cite_note-iucn_status_12_November_2021-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></small></div> </td></tr> <tr> <th colspan="2" style="color:inherit; min-width:15em; text-align: center; background-color: rgb(180,250,180)"><a href="/wiki/Taxonomy_(biology)" title="Taxonomy (biology)">Scientific classification</a> <span class="plainlinks taxobox-edit-taxonomy skin-invert" style="font-size:smaller; float:right; padding-right:0.4em; margin-left:-3em;"><span typeof="mw:File"><a href="/wiki/Template:Taxonomy/Mammillaria" title="Edit this classification"><img alt="Edit this classification" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/15px-OOjs_UI_icon_edit-ltr.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/23px-OOjs_UI_icon_edit-ltr.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/30px-OOjs_UI_icon_edit-ltr.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span> </th></tr> <tr> <td>Kingdom: </td> <td><a href="/wiki/Plant" title="Plant">Plantae</a> </td></tr> <tr> <td><i>Clade</i>: </td> <td><a href="/wiki/Vascular_plant" title="Vascular plant">Tracheophytes</a> </td></tr> <tr> <td><i>Clade</i>: </td> <td><a href="/wiki/Flowering_plant" title="Flowering plant">Angiosperms</a> </td></tr> <tr> <td><i>Clade</i>: </td> <td><a href="/wiki/Eudicots" title="Eudicots">Eudicots</a> </td></tr> <tr> <td>Order: </td> <td><a href="/wiki/Caryophyllales" title="Caryophyllales">Caryophyllales</a> </td></tr> <tr> <td>Family: </td> <td><a href="/wiki/Cactus" title="Cactus">Cactaceae</a> </td></tr> <tr> <td>Subfamily: </td> <td><a href="/wiki/Cactoideae" title="Cactoideae">Cactoideae</a> </td></tr> <tr> <td>Genus: </td> <td><a href="/wiki/Mammillaria" title="Mammillaria"><i>Mammillaria</i></a> </td></tr> <tr> <td>Species: </td> <td><div style="display:inline" class="species"><i><b>M. vetula</b></i></div> </td></tr> <tr> <th colspan="2" style="color:inherit; text-align: center; background-color: rgb(180,250,180)"><a href="/wiki/Binomial_nomenclature" title="Binomial nomenclature">Binomial name</a> </th></tr> <tr> <td colspan="2" style="text-align: center"><b><span class="binomial"><span style="font-weight:normal;"></span><i>Mammillaria vetula</i></span></b><br /><div style="font-size: 85%;"><a href="/wiki/Carl_Friedrich_Philipp_von_Martius" title="Carl Friedrich Philipp von Martius">Mart.</a>, 1832</div> </td></tr> <tr> <th colspan="2" style="color:inherit; text-align: center; background-color: rgb(180,250,180)"><a href="/wiki/Synonym_(taxonomy)" title="Synonym (taxonomy)">Synonyms</a> </th></tr> <tr> <td colspan="2" style="text-align: left"> <p><i>Mammillaria gracilis</i> </p> </td></tr> </tbody></table><style data-mw-deduplicate="TemplateStyles:r1238732961">@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox.biota tr{background:transparent!important}html.skin-theme-clientpref-night .mw-parser-output .infobox.biota img{background:transparent}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox.biota tr{background:transparent!important}html.skin-theme-clientpref-os .mw-parser-output .infobox.biota img{background:white}}.mw-parser-output .infobox.biota .taxobox-edit-taxonomy img{background:transparent!important}body.skin-vector .mw-parser-output table.biota.infobox{margin-top:0.5em}body.skin--responsive .mw-parser-output table.biota.infobox tr.taxonrow td{padding:2px 10px}</style> <p><i><b>Mammillaria vetula</b></i>, the <b>thimble cactus</b>, is a species of <a href="/wiki/Mammillaria" title="Mammillaria">nipple cactus</a> in the subfamily <a href="/wiki/Cactoideae" title="Cactoideae">Cactoideae</a>. It is native to the <a href="/wiki/Mexican_states" class="mw-redirect" title="Mexican states">Mexican states</a> of <a href="/wiki/Hidalgo_(state)" title="Hidalgo (state)">Hidalgo</a>, <a href="/wiki/Guanajuato" title="Guanajuato">Guanajuato</a> and <a href="/wiki/Quer%C3%A9taro" title="Querétaro">Querétaro</a>. Two subspecies are recognized <i>M. vetula</i> subsp. <i><b>vetula</b></i> and <i>M. vetula</i> subsp. <i><b>gracilis</b></i>. While the former is usually considered too plain to be grown as an <a href="/wiki/Ornamental_plant" title="Ornamental plant">ornamental plant</a>, the latter is one of the most widespread mammillarias in cultivation. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Taxonomy">Taxonomy</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mammillaria_vetula&action=edit&section=1" title="Edit section: Taxonomy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Mammillaria vetula</i> comprises two <a href="/wiki/Subspecies" title="Subspecies">subspecies</a>, <i>M. vetula</i> subsp. <i>vetula</i> and <i>M. vetula</i> subsp. <i>gracilis</i>, which were originally thought to be distinct species. <i>M. kuentziana</i> and <i>M. magneticola</i> are considered <a href="/wiki/Synonym_(taxonomy)" title="Synonym (taxonomy)">synonyms</a> of <i>M. vetula</i> subsp. <i>vetula</i>.<sup id="cite_ref-Pilbeam_2-0" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/Specific_epithet" class="mw-redirect" title="Specific epithet">specific epithet</a> <i>vetula</i> means "little old one". The common name "thimble cactus" refers to the resemblance of the stems to little <a href="/wiki/Thimble" title="Thimble">thimbles</a>.<sup id="cite_ref-Extension_3-0" class="reference"><a href="#cite_note-Extension-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Description">Description</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mammillaria_vetula&action=edit&section=2" title="Edit section: Description"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Mammillaria vetula</i> is a <a href="/wiki/Succulent" class="mw-redirect" title="Succulent">succulent</a> <a href="/wiki/Subshrub" title="Subshrub">subshrub</a><sup id="cite_ref-POWO_4-0" class="reference"><a href="#cite_note-POWO-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> which forms clusters of globose to short-cylindric, bluish-green stems with <a href="/wiki/Axil" class="mw-redirect" title="Axil">axils</a> that may be naked or slightly woolly.<sup id="cite_ref-Hunt_5-0" class="reference"><a href="#cite_note-Hunt-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Extension_3-1" class="reference"><a href="#cite_note-Extension-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> In <i>M. vetula</i> subsp. <i>vetula</i>, young plants have 25 to 40 radial <a href="/wiki/Thorns,_spines_and_prickles" class="mw-redirect" title="Thorns, spines and prickles">spines</a>, increasing to 50 as they mature, and they remain white. Central spines number 1 or 2, but up to 5 to 9 have been observed in some specimens in <a href="/wiki/Hidalgo_(state)" title="Hidalgo (state)">Hidalgo</a>. These spines are reddish-brown and about 10 mm long.<sup id="cite_ref-Pilbeam_2-1" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The flowers are funnel-shaped,<sup id="cite_ref-Extension_3-2" class="reference"><a href="#cite_note-Extension-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Lemon-yellow" class="mw-redirect" title="Lemon-yellow">lemon-yellow</a>, approximately 15 mm in length and width, with white (sometimes orange-yellow) <a href="/wiki/Stigma_(botany)" title="Stigma (botany)">stigmas</a>. The fruit is dull pink, and the seeds are black.<sup id="cite_ref-Pilbeam_2-2" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p><i>Mammillaria vetula</i> subsp. <i>gracilis</i> is prolific, producing offsets that detach easily.<sup id="cite_ref-Hunt_5-1" class="reference"><a href="#cite_note-Hunt-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Its stems are cylindrical, up to 13 cm long and 1 to 3 cm wide, with naked axils. It has 11 to 16 radial spines, 3 to 8 mm long, bristle-like, and chalky white (sometimes tipped brown in smaller variants). Central spines are absent or number up to 5 in mature plants, measuring 10 to 12 mm long and stronger than radials, either white or dark brown. The flowers are 12 mm long and wide, pale yellow with a pinkish or brownish midstripe. The fruit is small, red or pinkish-white, with black seeds.<sup id="cite_ref-Pilbeam_2-3" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> A form with smaller stems and brown spines also exists and is sometimes labeled <i>M. fragilis</i> or <i>M. gracilis</i> var. <i>pulchella</i>; the botanist <a href="/wiki/David_Hunt_(botanist)" title="David Hunt (botanist)">David Hunt</a> considers it a <a href="/wiki/Cultivar" title="Cultivar">cultivar</a>.<sup id="cite_ref-Pilbeam_2-4" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Distribution_and_habitat">Distribution and habitat</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mammillaria_vetula&action=edit&section=3" title="Edit section: Distribution and habitat"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Mammillaria_vetula_ssp_vetula.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Mammillaria_vetula_ssp_vetula.jpg/220px-Mammillaria_vetula_ssp_vetula.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Mammillaria_vetula_ssp_vetula.jpg/330px-Mammillaria_vetula_ssp_vetula.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Mammillaria_vetula_ssp_vetula.jpg/440px-Mammillaria_vetula_ssp_vetula.jpg 2x" data-file-width="548" data-file-height="412" /></a><figcaption><i>M. vetula</i> subsp. <i>vetula</i> in its natural habitat, a rocky slope at about 1800 m <a href="/wiki/Above_sea_level" class="mw-redirect" title="Above sea level">above sea level</a></figcaption></figure> <p><i>Mammillaria vetula</i> grows primarily in the <a href="/wiki/Desert" title="Desert">desert</a> and dry <a href="/wiki/Shrubland" title="Shrubland">shrubland</a>.<sup id="cite_ref-POWO_4-1" class="reference"><a href="#cite_note-POWO-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <i>M. mammillaria</i> subsp. <i>vetula</i> is found in the <a href="/wiki/Mexican_states" class="mw-redirect" title="Mexican states">Mexican states</a> of <a href="/wiki/Hidalgo_(state)" title="Hidalgo (state)">Hidalgo</a>, <a href="/wiki/Guanajuato" title="Guanajuato">Guanajuato</a>, and <a href="/wiki/Quer%C3%A9taro" title="Querétaro">Querétaro</a>, at altitudes of 1,600 to 3,350 meters. At the highest altitudes it is often covered by snow and ice. Specific locations include <a href="/w/index.php?title=San_Jos%C3%A9_del_Oro&action=edit&redlink=1" class="new" title="San José del Oro (page does not exist)">San José del Oro</a>, <a href="/wiki/La_Encarnaci%C3%B3n" title="La Encarnación">La Encarnación</a>, <a href="/w/index.php?title=Sierra_de_Jalapa&action=edit&redlink=1" class="new" title="Sierra de Jalapa (page does not exist)">Sierra de Jalapa</a>, and <a href="/wiki/Vizarr%C3%B3n" title="Vizarrón">Vizarrón</a>. <i>M. vetula</i> subsp. <i>gracilis</i> is known from Hidalgo and Querétaro, occurring at altitudes of 1,200 to 1,850 meters. Locations include <a href="/w/index.php?title=Puente_de_Dios&action=edit&redlink=1" class="new" title="Puente de Dios (page does not exist)">Puente de Dios</a>, <a href="/w/index.php?title=San_Onofre,_Ciudad_Fern%C3%A1ndez&action=edit&redlink=1" class="new" title="San Onofre, Ciudad Fernández (page does not exist)">San Onofre</a>, <a href="/wiki/Tolantongo" title="Tolantongo">Tolantongo</a>, <a href="/w/index.php?title=Barranca_Xilitla&action=edit&redlink=1" class="new" title="Barranca Xilitla (page does not exist)">Barranca Xilitla</a>, <a href="/w/index.php?title=San_Pedro_Gilo&action=edit&redlink=1" class="new" title="San Pedro Gilo (page does not exist)">San Pedro Gilo</a>, <a href="/wiki/Ixmiquilpan" title="Ixmiquilpan">Ixmiquilpan</a>, <a href="/wiki/Metztitlan" class="mw-redirect" title="Metztitlan">Metztitlan</a>.<sup id="cite_ref-Pilbeam_2-5" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The type specimen was collected in leaf litter under shrubs on <a href="/wiki/Limestone" title="Limestone">limestone</a> rocks.<sup id="cite_ref-Hunt_5-2" class="reference"><a href="#cite_note-Hunt-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Cultivation">Cultivation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mammillaria_vetula&action=edit&section=4" title="Edit section: Cultivation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg/220px-Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg" decoding="async" width="220" height="165" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg/330px-Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg/440px-Mammillaria_gracilis_cv._Arizona_Snowcap_1.jpg 2x" data-file-width="4000" data-file-height="3000" /></a><figcaption><i>M. vetula</i> subsp. <i>gracilis</i> cv. Arizona Snowcap is one of the popular cultivars.</figcaption></figure> <p><i>Mammillaria vetula</i> comprises both the least common mammillaria in cultivation and the most common one. Sometime after the 1970s or 1980s, the <a href="/wiki/Type_subspecies" class="mw-redirect" title="Type subspecies">type subspecies</a>, <i>M. vetula</i> subsp. <i>vetula</i>, fell out of popularity. The cacti nurseryman John Pilbeam speculates that, because of its plain spination and inconspicuous flowers, it was replaced by showier species. Plants grown in full sun develop the best spination and produce the best blooms, and Pilbeam considers such plants to be "a worthy addition to any collection".<sup id="cite_ref-Pilbeam_2-6" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Pilbeam estimates that, because it breaks up into propagable pieces at the slightest touch and poses no problems in cultivation, <i>M. vetula</i> subsp. <i>gracilis</i> is "probably the most commonly grown" mammillaria.<sup id="cite_ref-Pilbeam_2-7" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> He notes that it is commonly offered at plant sale events, "except paradoxically at cactus-oriented events, where it would be ignominious to offer it".<sup id="cite_ref-Pilbeam_2-8" class="reference"><a href="#cite_note-Pilbeam-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p><i>Mammillaria vetula</i> are tough plants, but require good drainage and do best in sandy soil left to dry out between waterings. Plants require a winter rest in a cold location, without watering, to encourage springtime blooming. It may be grown as a <a href="/wiki/Houseplant" title="Houseplant">houseplant</a>, in <a href="/wiki/Rock_garden" title="Rock garden">rock gardens</a>, or in <a href="/wiki/Xeriscape" class="mw-redirect" title="Xeriscape">xeriscapes</a>.<sup id="cite_ref-Extension_3-3" class="reference"><a href="#cite_note-Extension-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Cultivars include 'Oruga Blanca', 'Roi Baudouin I', and 'Snow Cap'.<sup id="cite_ref-x156_6-0" class="reference"><a href="#cite_note-x156-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mammillaria_vetula&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <a href="https://commons.wikimedia.org/wiki/Mammillaria_vetula" class="extiw" title="commons:Mammillaria vetula"><span style="font-style:italic; font-weight:bold;">Mammillaria vetula</span></a>.</div></div> </div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-iucn_status_12_November_2021-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-iucn_status_12_November_2021_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFGómez-Hinostrosa,_C.Sánchez_,_E.Guadalupe_Martínez,_J.Bárcenas_Luna,_R.2017" class="citation journal cs1">Gómez-Hinostrosa, C.; Sánchez , E.; Guadalupe Martínez, J.; Bárcenas Luna, R. (2017). <a rel="nofollow" class="external text" href="https://www.iucnredlist.org/species/152362/121533115">"<i>Mammillaria vetula</i>"</a>. <i><a href="/wiki/IUCN_Red_List" title="IUCN Red List">IUCN Red List of Threatened Species</a></i>. <b>2017</b>: e.T152362A121533115. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.2305%2FIUCN.UK.2017-3.RLTS.T152362A121533115.en">10.2305/IUCN.UK.2017-3.RLTS.T152362A121533115.en</a></span><span class="reference-accessdate">. Retrieved <span class="nowrap">12 November</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=IUCN+Red+List+of+Threatened+Species&rft.atitle=Mammillaria+vetula&rft.volume=2017&rft.pages=e.T152362A121533115&rft.date=2017&rft_id=info%3Adoi%2F10.2305%2FIUCN.UK.2017-3.RLTS.T152362A121533115.en&rft.au=G%C3%B3mez-Hinostrosa%2C+C.&rft.au=S%C3%A1nchez+%2C+E.&rft.au=Guadalupe+Mart%C3%ADnez%2C+J.&rft.au=B%C3%A1rcenas+Luna%2C+R.&rft_id=https%3A%2F%2Fwww.iucnredlist.org%2Fspecies%2F152362%2F121533115&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMammillaria+vetula" class="Z3988"></span></span> </li> <li id="cite_note-Pilbeam-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-Pilbeam_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-Pilbeam_2-8"><sup><i><b>i</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPilbeam1999" class="citation book cs1">Pilbeam, John (1999). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=-hBFAAAAYAAJ"><i>Mammillaria</i></a>. Cactus file handbook. Cirio Publishing Services. pp. <span class="nowrap">297–</span>298. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-9528302-8-3" title="Special:BookSources/978-0-9528302-8-3"><bdi>978-0-9528302-8-3</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">17 January</span> 2025</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Mammillaria&rft.series=Cactus+file+handbook&rft.pages=%3Cspan+class%3D%22nowrap%22%3E297-%3C%2Fspan%3E298&rft.pub=Cirio+Publishing+Services&rft.date=1999&rft.isbn=978-0-9528302-8-3&rft.aulast=Pilbeam&rft.aufirst=John&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D-hBFAAAAYAAJ&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMammillaria+vetula" class="Z3988"></span></span> </li> <li id="cite_note-Extension-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-Extension_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Extension_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Extension_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Extension_3-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://plants.ces.ncsu.edu/plants/mammillaria-vetula/">"Mammillaria vetula (Thimble Cactus, Thimble mammillaria)"</a>. <i>North Carolina Extension Gardener Plant Toolbox</i><span class="reference-accessdate">. Retrieved <span class="nowrap">20 January</span> 2025</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=North+Carolina+Extension+Gardener+Plant+Toolbox&rft.atitle=Mammillaria+vetula+%28Thimble+Cactus%2C+Thimble+mammillaria%29&rft_id=https%3A%2F%2Fplants.ces.ncsu.edu%2Fplants%2Fmammillaria-vetula%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMammillaria+vetula" class="Z3988"></span></span> </li> <li id="cite_note-POWO-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-POWO_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-POWO_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:151836-2">"Plants of the World Online"</a>. <i>Plants of the World Online</i>. 7 July 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">20 January</span> 2025</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Plants+of+the+World+Online&rft.atitle=Plants+of+the+World+Online&rft.date=2019-07-07&rft_id=https%3A%2F%2Fpowo.science.kew.org%2Ftaxon%2Furn%3Alsid%3Aipni.org%3Anames%3A151836-2&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMammillaria+vetula" class="Z3988"></span></span> </li> <li id="cite_note-Hunt-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hunt_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hunt_5-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Hunt_5-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFHuntTaylorCharles2006" class="citation book cs1"><a href="/wiki/David_Hunt_(botanist)" title="David Hunt (botanist)">Hunt, David R.</a>; Taylor, Nigel P.; Charles, G. (2006). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=up6vtQEACAAJ"><i>The New Cactus Lexicon</i></a>. Dh Books. p. 178. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-9538134-6-9" title="Special:BookSources/978-0-9538134-6-9"><bdi>978-0-9538134-6-9</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">17 January</span> 2025</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+New+Cactus+Lexicon&rft.pages=178&rft.pub=Dh+Books&rft.date=2006&rft.isbn=978-0-9538134-6-9&rft.aulast=Hunt&rft.aufirst=David+R.&rft.au=Taylor%2C+Nigel+P.&rft.au=Charles%2C+G.&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dup6vtQEACAAJ&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMammillaria+vetula" class="Z3988"></span></span> </li> <li id="cite_note-x156-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-x156_6-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFGómez_Sánchez2006" class="citation book cs1 cs1-prop-foreign-lang-source">Gómez Sánchez, Antonio (2006). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=TRoqvOo8WFsC&pg=PA83"><i>Enciclopedia ilustrada de los cactus y otras suculentas: descripción de las especies, hábitat y cuidados de cultivo</i></a> (in Spanish). Vol. II. Floramedia. p. 83. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-84-89347-55-7" title="Special:BookSources/978-84-89347-55-7"><bdi>978-84-89347-55-7</bdi></a><span class="reference-accessdate">. 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.navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Taxon_identifiers2824" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Taxon_identifiers2824" style="font-size:114%;margin:0 4em"><a href="/wiki/Help:Taxon_identifiers" title="Help:Taxon identifiers">Taxon identifiers</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;text-align: left;"><i>Mammillaria vetula</i></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><span style="white-space:nowrap;"><a href="/wiki/Wikidata" title="Wikidata">Wikidata</a>: <span class="uid"><span class="external"><a href="https://www.wikidata.org/wiki/Q1541740" class="extiw" title="wikidata:Q1541740">Q1541740</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Wikispecies" title="Wikispecies">Wikispecies</a>: <span class="uid"><span class="external"><a href="https://species.wikimedia.org/wiki/Mammillaria_vetula" class="extiw" title="wikispecies:Mammillaria vetula">Mammillaria vetula</a></span></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Catalogue_of_Life" title="Catalogue of Life">CoL</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.catalogueoflife.org/data/taxon/3XSR3">3XSR3</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Encyclopedia_of_Life" title="Encyclopedia of Life">EoL</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://eol.org/pages/5180741">5180741</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/EPPO_Code" title="EPPO Code">EPPO</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://gd.eppo.int/taxon/MAKVE">MAKVE</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Global_Biodiversity_Information_Facility" title="Global Biodiversity Information Facility">GBIF</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.gbif.org/species/7282091">7282091</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/INaturalist" title="INaturalist">iNaturalist</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://inaturalist.org/taxa/273629">273629</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/International_Plant_Names_Index" title="International Plant Names Index">IPNI</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.ipni.org/n/151836-2">151836-2</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Integrated_Taxonomic_Information_System" title="Integrated Taxonomic Information System">ITIS</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=907552">907552</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/IUCN_Red_List" title="IUCN Red List">IUCN</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://apiv3.iucnredlist.org/api/v3/taxonredirect/152362">152362</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/National_Center_for_Biotechnology_Information" title="National Center for Biotechnology Information">NCBI</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=278587">278587</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Open_Tree_of_Life" title="Open Tree of Life">Open Tree of Life</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://tree.opentreeoflife.org/taxonomy/browse?id=335756">335756</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/The_Plant_List" title="The Plant List">Plant List</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://www.theplantlist.org/tpl1.1/record/tro-5100045">tro-5100045</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Plants_of_the_World_Online" title="Plants of the World Online">POWO</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A151836-2">urn:lsid:ipni.org:names:151836-2</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/CITES" title="CITES">Species+</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://speciesplus.net/#/taxon_concepts/23300">23300</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/Tropicos" title="Tropicos">Tropicos</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://www.tropicos.org/name/5100045">5100045</a></span></span></li> <li><span style="white-space:nowrap;"><a href="/wiki/World_Flora_Online" title="World Flora Online">WFO</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://list.worldfloraonline.org/wfo-0001286983">wfo-0001286983</a></span></span></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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