View source for Echinomastus warnockii

{{Treatment/ID
|accepted_name=Echinomastus warnockii
|accepted_authority=(L. D. Benson) Glass & R. A. Foster
|publications={{Treatment/Publication
|title=Cact. Succ. J. (Los Angeles)
|place=47: 222. 1975
|year=1975
}}
|basionyms={{Treatment/ID/Basionym
|name=Neolloydia warnockii
|authority=L. D. Benson
|publication_title=Cact. Succ. J. (Los Angeles)
|publication_place=41: 186, fig. 4. 1969
}}
|synonyms={{Treatment/ID/Synonym
|name=Sclerocactus warnockii
|authority=(L. D. Benson) N. P. Taylor
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Echinomastus;Echinomastus warnockii
|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>[[Echinomastus]]</div><div class="higher-taxon"><small>species</small>[[Echinomastus warnockii]]</div></div>
|volume=Volume 4
|mention_page=page 193, 196
|treatment_page=page 195
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>(3–)4–10 × (2.5–)3–6.5 cm; ribs 13; areoles 12–16(–20) mm apart along ribs; areolar glands absent. <b>Spines</b> 12–20 per areole, tan to pale gray, pinkish, or yellowish brown (rarely dull white), usually tipped paler (“frosted”) gray or blue-gray; radial spines 11–17 per areole; abaxial (shortest) radial spine 8–13 × 0.31–0.55 mm; adaxial and lateral (longest) radial spines (11–)14–21 mm; central spines (0–)1(–4) per areole, abaxial central spine usually straight, rarely porrect, 11–18.5 mm (absent in some populations); adaxial central spines erect and loosely appressed against radial spines, 12–25 × 0.4–0.5 mm. <b>Flowers</b> 2.3–2.6 × 2.4–3.1 cm; inner tepals white or creamy white, sometimes with midstripes or faint midlines of pale green, greenish tan, dull pinkish brown, or olive-gray, 1–2 cm × 1.5–4.8 mm; stigma lobes green or yellow-green. <b>Fruits</b> indehiscent or disintegrating irregularly, coffin-shaped, ± 10 × 6–10 mm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering Feb–Mar; fruiting May–Jul.
|habitat=Chihuahuan desert scrub, low hills, gravelly bajadas, with sparse grasses and creosote bushes or in dense scrub with Texas false-agave, lechuguilla, and silverleaf, diverse substrates including limestone, tuff, and gypsum
|elevation=500-1000(-1400) m
|distribution=Tex.
|discussion=<p><i>Echinomastus warnockii</i> is very difficult to distinguish from <i>E. intertextus </i>var.<i> dasyacanthus</i>, except that the former has green stigma lobes and indehiscent fruits. Flowers of <i>E. warnockii</i> taper to their bases, unlike the broad-based flowers of <i>E. intertextus</i>. The photograph accompanying L. D. Benson’s original diagnosis of <i>E. warnockii</i> portrayed the relatively distinctive <i>E. mariposensis</i> instead, resulting in persistent confusion.</p><!--
--><p><i>Echinomastus warnockii</i> almost certainly occurs in Mexico but no specimens were seen in herbaria of Mexico or the United States.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Echinomastus warnockii
|author=
|authority=(L. D. Benson) Glass & R. A. Foster
|rank=species
|parent rank=genus
|synonyms=Sclerocactus warnockii
|basionyms=Neolloydia warnockii
|family=Cactaceae
|phenology=Flowering Feb–Mar; fruiting May–Jul.
|habitat=Chihuahuan desert scrub, low hills, gravelly bajadas, with sparse grasses and creosote bushes or in dense scrub with Texas false-agave, lechuguilla, and silverleaf, diverse substrates including limestone, tuff, and gypsum
|elevation=500-1000(-1400) m
|distribution=Tex.
|reference=None
|publication title=Cact. Succ. J. (Los Angeles)
|publication year=1975
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_367.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Echinomastus
|species=Echinomastus warnockii
}}<!--

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