View source for Hylocereus undatus

{{Treatment/ID
|accepted_name=Hylocereus undatus
|accepted_authority=(Haworth) Britton & Rose in N. L. Britton
|publications={{Treatment/Publication
|title=in N. L. Britton, Fl. Bermuda,
|place=256. 1918
|year=1918
}}
|common_names=Night-blooming cere us
|basionyms={{Treatment/ID/Synonym
|name=Cereus undatus
|authority=Haworth
}}
|synonyms=
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Hylocereus;Hylocereus undatus
|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>[[Hylocereus]]</div><div class="higher-taxon"><small>species</small>[[Hylocereus undatus]]</div></div>
|volume=Volume 4
|mention_page=page 176
|treatment_page=page 175
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="plant orientation;plant orientation"><b>Plants </b>sprawling or clambering over rocks, shrubs, and trees.</span> <span class="statement" id="st-d0_s1" data-properties="stem shape;stem length;stem width"><b>Stems </b>usually sharply 3-angled, to 500+ × 4–7.5 cm;</span> <span class="statement" id="st-d0_s2" data-properties="margin shape;bark coloration;bark shape">ribs with undulate margins and gray, hornlike bark;</span> <span class="statement" id="st-d0_s3" data-properties="areole diameter">areoles 2 mm diam.</span> <span class="statement" id="st-d0_s4" data-properties="spine count;spine coloration;spine prominence"><b>Spines </b>1–4 per areole, brownish gray, inconspicuous.</span> <span class="statement" id="st-d0_s5" data-properties="flower odor"><b>Flowers </b>fragrant;</span> <span class="statement" id="st-d0_s6" data-properties="outer tepal coloration;outermost tepal orientation;midstripe coloration">outer tepals white, outermost strongly reflexed, midstripes yellowish green;</span> <span class="statement" id="st-d0_s7" data-properties="inner tepal coloration;inner tepal width;inner tepal shape">inner tepals white, broad, oblanceolate;</span> <span class="statement" id="st-d0_s8" data-properties="filament some measurement">filaments 50–75 mm;</span> <span class="statement" id="st-d0_s9" data-properties="style coloration;style some measurement">style cream, 175–200 mm.</span> <span class="statement" id="st-d0_s10" data-properties="fruit shape;fruit shape;fruit shape"><b>Fruits </b>spheric to oblong.</span> <span class="statement" id="st-d0_s11" data-properties="seed length;seed width;2n chromosome count"><b>Seeds </b>2 × 1 mm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|habitat=Disturbed sites in sandy soils [tropical deciduous and semideciduous forests]
|elevation=0-50 m
|distribution=Fla.;Mexico;West Indies;Central America;n South America.
|discussion=<p>Hylocereus undatus is sporadically naturalized in tropical and subtropical regions worldwide where it is cultivated for its large, edible fruits and beautiful flowers, which are among the largest in the cactus family. In Florida, H. undatus has escaped from cultivation in nine counties, forming large colonies in some areas. Individuals of this species grow prolifically and may soon overrun their substrate. Whether populations of H. undatus in the United States are merely persisting or are also reproducing sexually remains unclear.</p><!--
--><p>The vernacular name night-blooming cereus has been applied to several genera of cacti with large, nocturnal flowers.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Hylocereus undatus
|author=
|authority=(Haworth) Britton & Rose in N. L. Britton
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Cereus undatus
|family=Cactaceae
|habitat=Disturbed sites in sandy soils [tropical deciduous and semideciduous forests]
|elevation=0-50 m
|distribution=Fla.;Mexico;West Indies;Central America;n South America.
|reference=None
|publication title=in N. L. Britton, Fl. Bermuda,
|publication year=1918
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_335.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Hylocereus
|species=Hylocereus undatus
|2n chromosome count=22
|areole diameter=2
|bark coloration=gray
|bark shape=hornlike
|filament some measurement=50mm;75mm
|flower odor=fragrant
|fruit shape=spheric;oblong
|inner tepal coloration=white
|inner tepal shape=oblanceolate
|inner tepal width=broad
|margin shape=undulate
|midstripe coloration=yellowish green
|outer tepal coloration=white
|outermost tepal orientation=reflexed
|plant orientation=clambering;sprawling
|seed length=2
|seed width=1
|spine coloration=brownish gray
|spine count=1;4
|spine prominence=inconspicuous
|stem length=0cm;500cm
|stem shape=3-angled
|stem width=4cm;7.5cm
|style coloration=cream
|style some measurement=175mm;200mm
}}<!--

-->[[Category:Treatment]][[Category:Hylocereus]]