View source for Coryphantha robbinsorum

{{Treatment/ID
|accepted_name=Coryphantha robbinsorum
|accepted_authority=(W. Earle) A. D. Zimmerman
|publications={{Treatment/Publication
|title=Cac t. Succ. J. (Los Angeles)
|place=50: 294. 1978
|year=1978
}}
|common_names=Cochise pincushion cactus;Cochise foxtail cactus
|basionyms={{Treatment/ID/Synonym
|name=Cochiseia robbinsorum
|authority=W. Earle
}}
|synonyms={{Treatment/ID/Synonym
|name=Escobaria robbinsorum
|authority=(W. Earle) D. R. Hunt
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Coryphantha;Coryphantha robbinsorum
|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>[[Coryphantha]]</div><div class="higher-taxon"><small>species</small>[[Coryphantha robbinsorum]]</div></div>
|volume=Volume 4
|mention_page=page 223
|treatment_page=page 231
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>usually unbranched, spine-bearing areoles with long white wool obscuring basal portion of spine. <b>Roots</b> diffuse or short taproots. <b>Stems</b> deep-seated (buried except for its apical 0.5–3 cm), 2–10 × 2–6 cm; tubercles 5–8 × 4–6 mm, moderately soft; areolar glands absent. <b>Spines</b> 11–20 per areole, white, largest spines dark tipped when fresh, straight; radial spines 10–20 per areole, 8–18 × 0.2–0.5 mm; central spines 0(–1) per areole, similar to largest radial spines, but porrect, ca. 8–18 mm. <b>Flowers</b> nearly apical, 12–29 × 10–18.5 mm; outer tepals fringed; inner tepals 14 per flower, dull yellow, frequently tinted greenish or bronze, often with midstripes of brownish or dull pink; outer filaments greenish; anthers bright yellow; stigma lobes green or yellow-green. <b>Fruits</b> bright orange-red or scarlet, spheric to obovoid, 6–8.5 × 3–4.5 mm, slightly juicy, quickly drying and turning brownish; floral remnant weakly persistent, often deciduous through breakage not abscission. <b>Seeds</b> dark brown, drying blackish, spheric, 1.3–1.4 mm, pitted. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Apr; fruiting Jun–Aug.
|habitat=Semidesert grasslands, limestone hills
|elevation=1300-1500 m
|distribution=Ariz.;Mexico (Sonora).
|discussion=<p>Of conservation concern.</p><!--
--><p>Coryphantha robbinsorum is somewhat intermediate between the C. dasyacantha species-group, especially C. zilziana Boedeker, and the C. missouriensis species-group.</p><!--
--><p>Coryphantha robbinsorum is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Coryphantha robbinsorum
|author=
|authority=(W. Earle) A. D. Zimmerman
|rank=species
|parent rank=genus
|synonyms=Escobaria robbinsorum
|basionyms=Cochiseia robbinsorum
|family=Cactaceae
|phenology=Flowering Mar–Apr; fruiting Jun–Aug.
|habitat=Semidesert grasslands, limestone hills
|elevation=1300-1500 m
|distribution=Ariz.;Mexico (Sonora).
|reference=None
|publication title=Cac t. Succ. J. (Los Angeles)
|publication year=1978
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_424.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Coryphantha
|species=Coryphantha robbinsorum
}}<!--

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