Difference between revisions of "Opuntia triacantha"

(Willdenow) Sweet

Hort. Brit., 172. 1826.

Basionym: Cactus triacanthos Willdenow
Synonyms: Opuntia abjecta Small ex Britton & RoseOpuntia militaris Britton & Rose
Treatment appears in FNA Volume 4. Treatment on page 130. Mentioned on page 126.
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--><span class="statement" id="st-d0_s0" data-properties="shrub growth form or orientation;shrub orientation;shrub some measurement"><b>Shrubs,</b> prostrate (to erect), clambering, to 0.6 m.</span> <span class="statement" id="st-d0_s1" data-properties="stem segment fusion;stem segment coloration;stem segment shape;stem segment arrangement or shape;stem segment length;stem segment width;stem segment relief;stem segment pubescence"><b>Stem </b>segments easily detached, green, flattened, elliptic, 5–18 × 3–7 cm, slightly tuberculate, glabrous;</span> <span class="statement" id="st-d0_s2" data-properties="areole count;areole shape;areole diameter">areoles 3–4 per diagonal row across midstem segment, subcircular, 4 mm diam.;</span> <span class="statement" id="st-d0_s3" data-properties="wool coloration">wool whitish.</span> <span class="statement" id="st-d0_s4" data-properties="spine atypical count;spine count;spine arrangement;spine orientation;spine orientation;spine orientation;spine coloration;spine coloration;spine coloration;spine coloration;spine coloration;spine course;spine shape;spine some measurement;spine architecture or shape"><b>Spines </b>1–3 (–4) per areole, ± evenly distributed on stem segment, porrect to spreading, gray to whitish or cream, tipped black, straight, acicular, to 40 mm, barbed.</span> <span class="statement" id="st-d0_s5" data-properties="glochid coloration;glochid life cycle;glochid coloration;glochid some measurement"><b>Glochids </b>yellow, aging brown, 4–9 mm.</span> <span class="statement" id="st-d0_s6" data-properties="inner tepal coloration;inner tepal some measurement"><b>Flowers:</b> inner tepals yellow throughout, 20–25 mm;</span> <span class="statement" id="st-d0_s7" data-properties="filament coloration;filament coloration;filament coloration">filaments pale green to yellow;</span> <span class="statement" id="st-d0_s8" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s9" data-properties="style coloration;style coloration;style coloration">style pale green or white, pink tinged;</span> <span class="statement" id="st-d0_s10" data-properties="">stigma lobes color unknown.</span> <span class="statement" id="st-d0_s11" data-properties="fruit coloration;fruit shape;fruit shape;fruit shape;fruit length;fruit width;fruit texture;fruit pubescence;fruit architecture;areole count"><b>Fruits </b>red, ovoid to obovoid, 25–30 × 15–20 mm, fleshy, glabrous, bearing few areoles, spineless.</span> <span class="statement" id="st-d0_s12" data-properties="seed coloration;seed shape;seed shape;seed diameter"><b>Seeds </b>tan, subcircular, somewhat flattened, 2.5 mm diam.;</span> <span class="statement" id="st-d0_s13" data-properties="girdle prominence;girdle some measurement;2n chromosome count">girdle protruding less than 1 mm. <b>2n</b> = 22.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> prostrate (to erect), clambering, to 0.6 m. <b>Stem</b> segments easily detached, green, flattened, elliptic, 5–18 × 3–7 cm, slightly tuberculate, glabrous; areoles 3–4 per diagonal row across midstem segment, subcircular, 4 mm diam.; wool whitish. <b>Spines</b> 1–3(–4) per areole, ± evenly distributed on stem segment, porrect to spreading, gray to whitish or cream, tipped black, straight, acicular, to 40 mm, barbed. <b>Glochids</b> yellow, aging brown, 4–9 mm. <b>Flowers</b>: inner tepals yellow throughout, 20–25 mm; filaments pale green to yellow; anthers yellow; style pale green or white, pink tinged; stigma lobes color unknown. <b>Fruits</b> red, ovoid to obovoid, 25–30 × 15–20 mm, fleshy, glabrous, bearing few areoles, spineless. <b>Seeds</b> tan, subcircular, somewhat flattened, 2.5 mm diam.; girdle protruding less than 1 mm. <b>2n</b> = 22.</span><!--
  
 
-->{{Treatment/Body
 
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|phenology=Flowering year-round.
 
|habitat=Sandy areas on old limestone reefs, openings in tropical forests
 
|habitat=Sandy areas on old limestone reefs, openings in tropical forests
 
|elevation=0 m
 
|elevation=0 m
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|basionyms=Cactus triacanthos
 
|basionyms=Cactus triacanthos
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering year-round.
 
|habitat=Sandy areas on old limestone reefs, openings in tropical forests
 
|habitat=Sandy areas on old limestone reefs, openings in tropical forests
 
|elevation=0 m
 
|elevation=0 m
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|publication year=1826
 
|publication year=1826
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_240.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_240.xml
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|genus=Opuntia
 
|genus=Opuntia
 
|species=Opuntia triacantha
 
|species=Opuntia triacantha
|2n chromosome count=22
 
|anther coloration=yellow
 
|areole count=few;3;4
 
|areole diameter=4
 
|areole shape=subcircular
 
|filament coloration=pale green;yellow
 
|fruit architecture=spineless
 
|fruit coloration=red
 
|fruit length=25mm;30mm
 
|fruit pubescence=glabrous
 
|fruit shape=ovoid;obovoid
 
|fruit texture=fleshy
 
|fruit width=15mm;20mm
 
|girdle prominence=protruding
 
|girdle some measurement=0mm;1mm
 
|glochid coloration=brown;yellow
 
|glochid life cycle=aging
 
|glochid some measurement=4mm;9mm
 
|inner tepal coloration=yellow
 
|inner tepal some measurement=20mm;25mm
 
|seed coloration=tan
 
|seed diameter=2.5
 
|seed shape=flattened;subcircular
 
|shrub growth form or orientation=prostrate
 
|shrub orientation=clambering
 
|shrub some measurement=0m;0.6m
 
|spine architecture or shape=barbed
 
|spine arrangement=distributed
 
|spine atypical count=3;4
 
|spine coloration=tipped black;gray;whitish or cream
 
|spine count=1;3
 
|spine course=straight
 
|spine orientation=porrect;spreading
 
|spine shape=acicular
 
|spine some measurement=0mm;40mm
 
|stem segment arrangement or shape=elliptic
 
|stem segment coloration=green
 
|stem segment fusion=detached
 
|stem segment length=5cm;18cm
 
|stem segment pubescence=glabrous
 
|stem segment relief=tuberculate
 
|stem segment shape=flattened
 
|stem segment width=3cm;7cm
 
|style coloration=pink tinged;white;pale green
 
|wool coloration=whitish
 
 
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-->[[Category:Treatment]][[Category:Opuntia]]
 
-->[[Category:Treatment]][[Category:Opuntia]]

Revision as of 14:01, 27 July 2019

Shrubs, prostrate (to erect), clambering, to 0.6 m. Stem segments easily detached, green, flattened, elliptic, 5–18 × 3–7 cm, slightly tuberculate, glabrous; areoles 3–4 per diagonal row across midstem segment, subcircular, 4 mm diam.; wool whitish. Spines 1–3(–4) per areole, ± evenly distributed on stem segment, porrect to spreading, gray to whitish or cream, tipped black, straight, acicular, to 40 mm, barbed. Glochids yellow, aging brown, 4–9 mm. Flowers: inner tepals yellow throughout, 20–25 mm; filaments pale green to yellow; anthers yellow; style pale green or white, pink tinged; stigma lobes color unknown. Fruits red, ovoid to obovoid, 25–30 × 15–20 mm, fleshy, glabrous, bearing few areoles, spineless. Seeds tan, subcircular, somewhat flattened, 2.5 mm diam.; girdle protruding less than 1 mm. 2n = 22.


Phenology: Flowering year-round.
Habitat: Sandy areas on old limestone reefs, openings in tropical forests
Elevation: 0 m

Discussion

Opuntia triacantha occurs in the flora area only on Big Pine Key, Florida. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.