View source for Sclerocactus brevispinus

{{Treatment/ID
|accepted_name=Sclerocactus brevispinus
|accepted_authority=K. D. Heil & J. M. Porter
|publications={{Treatment/Publication
|title=Haseltonia
|place=2: 26. 1994
|year=1994
}}
|common_names=Parriette fishhook cactus;Shortspine fishhook cactus
|basionyms={{Treatment/ID/Basionym
|name=Sclerocactus wetlandicus var. ilseae
|authority=Hochstätter
|publication_title=Succulenta (Netherlands)
|publication_place=72: 22. 1993
}}
|synonyms=
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Sclerocactus;Sclerocactus brevispinus
|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>[[Sclerocactus]]</div><div class="higher-taxon"><small>species</small>[[Sclerocactus brevispinus]]</div></div>
|volume=Volume 4
|mention_page=page 199, 200
|treatment_page=page 201
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>usually unbranched, green, depressed-spheric or elliptic to shortly cylindric, ovoid when young, 2.9–8.5(–10.4) × 1.8–7.5(–8) cm, somewhat glaucous; ribs usually 13, obscure to well developed, tubercles evident on ribs. <b>Spines</b> not obscuring stems; radial spines (5–)6–7(–13) per areole, acicular, elliptic or rhombic in cross section; central spines (0–)1(–3) per areole, abaxial central spine, if present, hooked or curving somewhat downward, straw colored to brown, highlighted purplish or reddish, hooked, porrect, terete or somewhat angled, 3–31(–39) × 0.5–1 mm; lateral central spines 0–2 per areole, erect, similar to abaxial but not curved, angled to flat, somewhat inconspicuous, triangular in cross section, 15–35  1–1.5 mm; adaxial central spines not differentiated. <b>Flowers</b> campanulate, 2–3(–4) × 1.1–3(–3.5) cm; outer tepals greenish to purple with brownish midstripes, pink, purple or whitish at margins, oblanceolate, 7–16 × 2–6(–7) mm, mucronate, marginally membranous and crisped or minutely toothed; inner tepals purple, sometimes suffused with brown, largest tepals oblanceolate, 10–22(–30) × 4–7 mm, mucronate, somewhat irregularly toothed; filaments white, tinged with pink to pink-purple; anthers yellow. <b>Fruits</b> irregularly dehiscent, green to tan, sometimes suffused with pink, shortly cylindric, 7–15 × 5–12 mm, dry; scales few, membranous, scarious-margined. <b>Seeds</b> (1.2–)1.8–2.7 × (1.9–)2.5–3.8 mm; cells convex but flattened apically.</span><!--

-->{{Treatment/Body
|phenology=Flowering late Apr–May.
|habitat=Exposed clay hills, saltbush or sagebrush flats
|elevation=1400-1500 m
|distribution=Utah.
|discussion=<p>Of conservation concern.</p><!--
--><p>The combination of spheric stems, short spines, and small pink flowers make <i>Sclerocactus brevispinus</i> easily identified. Morphologically, <i>S. brevispinus</i> is very similar to <i>S. mesae-verdae</i>. This similarity appears to be a case of convergent evolution. Phylogenetic analyses of chloroplast DNA sequences (J. M. Porter et al. 2000) support more recent common ancestry of <i>S. brevispinus</i> with <i>S. whipplei</i>, <i>S. cloverae</i>, <i>S. glaucus</i>, <i>S. parviflorus</i>, <i>S. wetlandicus</i>, and <i>S. wrightiae</i> than with <i>S. mesae-verdae</i>.</p><!--
--><p>There is a well-documented cline of genetic mixing between <i>Sclerocactus brevispinus</i> and <i>S. wetlandicus</i>. An important natural threat to <i>S. brevispinus</i> is genetic swamping from the more widespread <i>S. wetlandicus</i>.</p><!--
--><p><i>Sclerocactus brevispinus</i> is considered to be conspecific with <i>S. glaucus</i> by the U.S. Fish and Wildlife Service, and is therefore protected with that threatened species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sclerocactus brevispinus
|author=
|authority=K. D. Heil & J. M. Porter
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Sclerocactus wetlandicus var. ilseae
|family=Cactaceae
|phenology=Flowering late Apr–May.
|habitat=Exposed clay hills, saltbush or sagebrush flats
|elevation=1400-1500 m
|distribution=Utah.
|reference=None
|publication title=Haseltonia
|publication year=1994
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_375.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Sclerocactus
|species=Sclerocactus brevispinus
}}<!--

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