View source for Acanthocereus tetragonus

{{Treatment/ID
|accepted_name=Acanthocereus tetragonus
|accepted_authority=(Linnaeus) Hummelinck
|publications={{Treatment/Publication
|title=Succulenta (Netherlands)
|place=20: 165. 1938
|year=1938
}}
|common_names=Barbed-wire cactus;triangle cactus;chaco
|basionyms={{Treatment/ID/Basionym
|name=Cactus tetragonus
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=1: 466. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Acanthocereus floridanus
|authority=Small ex Britton & Rose
|rank=species
}} {{Treatment/ID/Synonym
|name=Acanthocereus pentagonus
|authority=(Linnaeus) Britton & Rose
|rank=species
}} {{Treatment/ID/Synonym
|name=Cereus pentagonus
|authority=(Linnaeus) Haworth
|rank=species
}} {{Treatment/ID/Synonym
|name=Cereus tetragonus
|authority=(Linnaeus) Miller
|rank=species
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Acanthocereus;Acanthocereus tetragonus
|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>[[Acanthocereus]]</div><div class="higher-taxon"><small>species</small>[[Acanthocereus tetragonus]]</div></div>
|volume=Volume 4
|mention_page=page 150, 154
|treatment_page=page 155
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> clambering or arching-reclining, branched near base, sometimes with well-developed trunks. <b>Stems</b> dark green, growing to 200 cm per season; ribs from base to rib crest 3–5 cm, less than 1 cm thick. <b>Spines</b> abruptly thickened at base, extremely variable. <b>Flowers</b> 14–20 cm; flower tube 8–15 cm, ± tuberculate, areoles few, usually 1 spine per areole; outer tepals narrowly lanceolate to linear, 3.5–4 cm, apex acuminate; inner tepals broadly linear, 3.5–4.5 cm, apex acuminate; ovary with small scales and usually 3–5 diverging spines per areole. <b>Fruits</b> bright red, ovoid to oblong, 30–80(–100) mm, slightly tuberculate, shiny, edible, sweet. <b>2n</b> = 22 [as A. pentagonus (Linnaeus) Britton & Rose].</span><!--

-->{{Treatment/Body
|phenology=Flowering mid summer–fall.
|habitat=Sandy soils of dense thickets, hammocks, bottomlands of coastal areas
|elevation=0-10 m
|distribution=Fla.;Tex.;Mexico;West Indies;Central America;n South America;introduced Pacific Islands (Hawaii).
|discussion=<p>The Florida populations have been called <i>Acanthocereus</i> floridanus but now appear to be the northernmost variants of the highly variable species <i>A. tetragonus</i>, which occurs throughout the Caribbean region (D. R. Hunt 1991).</p><!--
--><p>The common name “triangle cactus” refers to the mature stems in cross section; the epithet “tetragonus” alludes to the juvenile stems, which often have four angles.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Acanthocereus tetragonus
|authority=(Linnaeus) Hummelinck
|rank=species
|parent rank=genus
|synonyms=Acanthocereus floridanus;Acanthocereus pentagonus;Cereus pentagonus;Cereus tetragonus
|basionyms=Cactus tetragonus
|family=Cactaceae
|phenology=Flowering mid summer–fall.
|habitat=Sandy soils of dense thickets, hammocks, bottomlands of coastal areas
|elevation=0-10 m
|distribution=Fla.;Tex.;Mexico;West Indies;Central America;n South America;introduced Pacific Islands (Hawaii).
|reference=None
|publication title=Succulenta (Netherlands)
|publication year=1938
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_299.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Acanthocereus
|species=Acanthocereus tetragonus
}}<!--

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