Difference between revisions of "Opuntia fragilis"

(Nuttall) Haworth

Suppl. Pl. Succ., 82. 1819.

Common names: Brittle pricklypear little pricklypear
Endemic
Basionym: Cactus fragilis Nuttall Gen. N. Amer. Pl. 1: 296. 1818
Synonyms: Opuntia brachyarthra Engelmann & J. M. Bigelow Opuntia fragilis var. brach yarthra (Engelmann & J. M. Bigelow) J. M. Coulter
Treatment appears in FNA Volume 4. Treatment on page 146. Mentioned on page 93, 124.
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|common_names=Brittle pricklypear;little pricklypear
 
|common_names=Brittle pricklypear;little pricklypear
|basionyms={{Treatment/ID/Synonym
+
|special_status={{Treatment/ID/Special_status
 +
|code=E
 +
|label=Endemic
 +
}}
 +
|basionyms={{Treatment/ID/Basionym
 
|name=Cactus fragilis
 
|name=Cactus fragilis
 
|authority=Nuttall
 
|authority=Nuttall
 +
|rank=species
 +
|publication_title=Gen. N. Amer. Pl.
 +
|publication_place=1: 296. 1818
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Opuntia brachyarthra
 
|name=Opuntia brachyarthra
 
|authority=Engelmann & J. M. Bigelow
 
|authority=Engelmann & J. M. Bigelow
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Opuntia fragilis var. brach
 
|name=Opuntia fragilis var. brach
 
|authority=yarthra (Engelmann & J. M. Bigelow) J. M. Coulter
 
|authority=yarthra (Engelmann & J. M. Bigelow) J. M. Coulter
 +
|rank=variety
 
}}
 
}}
 
|hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Opuntia;Opuntia fragilis
 
|hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Opuntia;Opuntia fragilis
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}}<!--
 
}}<!--
  
--><span class="statement" id="st-d0_s0" data-properties="shrub position;shrub some measurement"><b>Shrubs,</b> low, forming mats, 2–10 cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem segment fusion;stem segment coloration;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment arrangement or shape;stem segment shape;stem segment atypical length;stem segment length;stem segment atypical width;stem segment width;stem segment position;stem segment relief;stem segment pubescence"><b>Stem </b>segments easily detached when terminal, dark green, subspheric to subcylindric, to flattened and elliptic obovate, (1.5–) 2–5.5 × (1–) 1.5–3 cm, low tuberculate (pronounced when dried), glabrous;</span> <span class="statement" id="st-d0_s2" data-properties="areole count;areole shape;areole length;areole width">areoles 3–5 per diagonal row across midstem segment, oval, 3 × 2.5 mm;</span> <span class="statement" id="st-d0_s3" data-properties="wool coloration">wool white.</span> <span class="statement" id="st-d0_s4" data-properties="spine count;spine coloration;spine course;spine shape;spine shape;spine length;spine some measurement;areole orientation;tip coloration"><b>Spines </b>3–8 per areole, in most areoles spreading, gray with brown tips, straight, ± acicular, terete, the longest 8–24 mm;</span> <span class="statement" id="st-d0_s5" data-properties="spine shape;spine some measurement;base count">depressed spines at base of areoles 0–3, 1–3 mm.</span> <span class="statement" id="st-d0_s6" data-properties="glochid coloration;glochid coloration;glochid coloration;glochid prominence;glochid some measurement"><b>Glochids </b>in crescent at adaxial margin of areole, tan to brown, inconspicuous, to 3 mm.</span> <span class="statement" id="st-d0_s7" data-properties="inner tepal coloration;inner tepal coloration;inner tepal some measurement"><b>Flowers:</b> inner tepals yellow, sometimes basally red, 20–26 mm;</span> <span class="statement" id="st-d0_s8" data-properties="filament coloration;filament coloration">filaments white or red;</span> <span class="statement" id="st-d0_s9" data-properties="anther coloration">anthers yellow;</span> <span class="statement" id="st-d0_s10" data-properties="style coloration">style white;</span> <span class="statement" id="st-d0_s11" data-properties="stigma lobe coloration">stigma lobes green.</span> <span class="statement" id="st-d0_s12" data-properties="fruit coloration;fruit length;fruit width;fruit condition or texture;fruit pubescence"><b>Fruits </b>tan, 10–30 × 8–15 mm, dry, glabrous;</span> <span class="statement" id="st-d0_s13" data-properties="areole count;spine count;spine height or length or size">areoles 12–22, distal areoles bearing 1–6 short spines.</span> <span class="statement" id="st-d0_s14" data-properties="seed coloration;seed coloration;seed coloration;seed shape;seed shape;seed shape;seed shape;seed shape;seed diameter"><b>Seeds </b>tan to gray, flattened, warped, oblong to subcircular, 5–6 mm diam.;</span> <span class="statement" id="st-d0_s15" data-properties="girdle prominence;girdle some measurement;2n chromosome count">girdle protruding 1–1.5 mm. <b>2n</b> = 66.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> low, forming mats, 2–10 cm. <b>Stem</b> segments easily detached when terminal, dark green, subspheric to subcylindric, to flattened and elliptic obovate, (1.5–)2–5.5 × (1–)1.5–3 cm, low tuberculate (pronounced when dried), glabrous; areoles 3–5 per diagonal row across midstem segment, oval, 3 × 2.5 mm; wool white. <b>Spines</b> 3–8 per areole, in most areoles spreading, gray with brown tips, straight, ± acicular, terete, the longest 8–24 mm; depressed spines at base of areoles 0–3, 1–3 mm. <b>Glochids</b> in crescent at adaxial margin of areole, tan to brown, inconspicuous, to 3 mm. <b>Flowers</b>: inner tepals yellow, sometimes basally red, 20–26 mm; filaments white or red; anthers yellow; style white; stigma lobes green. <b>Fruits</b> tan, 10–30 × 8–15 mm, dry, glabrous; areoles 12–22, distal areoles bearing 1–6 short spines. <b>Seeds</b> tan to gray, flattened, warped, oblong to subcircular, 5–6 mm diam.; girdle protruding 1–1.5 mm. <b>2n</b> = 66.</span><!--
  
 
-->{{Treatment/Body
 
-->{{Treatment/Body
 +
|phenology=Flowering summer (late Jun-early Jul).
 
|habitat=Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite
 
|habitat=Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite
 
|elevation=0-2400 m
 
|elevation=0-2400 m
 
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Calif.;Colo.;Idaho;Ill.;Iowa;Kans.;Mich. ;Minn.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo.
 
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Calif.;Colo.;Idaho;Ill.;Iowa;Kans.;Mich. ;Minn.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo.
|discussion=<p>Opuntia fragilis is a widespread, though inconspicuous, species; in many places, it flowers infrequently, if at all. Its easily detached stem segments are dispersed by animals and possibly water.</p>
+
|discussion=<p><i>Opuntia fragilis</i> is a widespread, though inconspicuous, species; in many places, it flowers infrequently, if at all. Its easily detached stem segments are dispersed by animals and possibly water.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Opuntia fragilis
 
name=Opuntia fragilis
|author=
 
 
|authority=(Nuttall) Haworth
 
|authority=(Nuttall) Haworth
 
|rank=species
 
|rank=species
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|basionyms=Cactus fragilis
 
|basionyms=Cactus fragilis
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering summer (late Jun-early Jul).
 
|habitat=Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite
 
|habitat=Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite
 
|elevation=0-2400 m
 
|elevation=0-2400 m
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|publication title=Suppl. Pl. Succ.,
 
|publication title=Suppl. Pl. Succ.,
 
|publication year=1819
 
|publication year=1819
|special status=
+
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_281.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_281.xml
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|genus=Opuntia
 
|genus=Opuntia
 
|species=Opuntia fragilis
 
|species=Opuntia fragilis
|2n chromosome count=66
 
|anther coloration=yellow
 
|areole count=12;22
 
|areole length=3
 
|areole orientation=spreading
 
|areole shape=oval
 
|areole width=2.5
 
|base count=0;3
 
|filament coloration=red;white
 
|fruit coloration=tan
 
|fruit condition or texture=dry
 
|fruit length=10mm;30mm
 
|fruit pubescence=glabrous
 
|fruit width=8mm;15mm
 
|girdle prominence=protruding
 
|girdle some measurement=1mm;1.5mm
 
|glochid coloration=tan;brown
 
|glochid prominence=inconspicuous
 
|glochid some measurement=0mm;3mm
 
|inner tepal coloration=red;yellow
 
|inner tepal some measurement=20mm;26mm
 
|seed coloration=tan;gray
 
|seed diameter=5mm;6mm
 
|seed shape=oblong;subcircular
 
|shrub position=low
 
|shrub some measurement=2cm;10cm
 
|spine coloration=gray
 
|spine count=1;6
 
|spine course=straight
 
|spine height or length or size=short
 
|spine length=longest
 
|spine shape=depressed;terete;acicular
 
|spine some measurement=1mm;3mm
 
|stem segment arrangement or shape=elliptic
 
|stem segment atypical length=1.5cm;2cm
 
|stem segment atypical width=1cm;1.5cm
 
|stem segment coloration=dark green
 
|stem segment fusion=detached
 
|stem segment length=2cm;5.5cm
 
|stem segment position=low
 
|stem segment pubescence=glabrous
 
|stem segment relief=tuberculate
 
|stem segment shape=obovate;subspheric;subcylindric
 
|stem segment width=1.5cm;3cm
 
|stigma lobe coloration=green
 
|style coloration=white
 
|tip coloration=brown
 
|wool coloration=white
 
 
}}<!--
 
}}<!--
  
 
-->[[Category:Treatment]][[Category:Opuntia]]
 
-->[[Category:Treatment]][[Category:Opuntia]]

Latest revision as of 22:57, 5 November 2020

Shrubs, low, forming mats, 2–10 cm. Stem segments easily detached when terminal, dark green, subspheric to subcylindric, to flattened and elliptic obovate, (1.5–)2–5.5 × (1–)1.5–3 cm, low tuberculate (pronounced when dried), glabrous; areoles 3–5 per diagonal row across midstem segment, oval, 3 × 2.5 mm; wool white. Spines 3–8 per areole, in most areoles spreading, gray with brown tips, straight, ± acicular, terete, the longest 8–24 mm; depressed spines at base of areoles 0–3, 1–3 mm. Glochids in crescent at adaxial margin of areole, tan to brown, inconspicuous, to 3 mm. Flowers: inner tepals yellow, sometimes basally red, 20–26 mm; filaments white or red; anthers yellow; style white; stigma lobes green. Fruits tan, 10–30 × 8–15 mm, dry, glabrous; areoles 12–22, distal areoles bearing 1–6 short spines. Seeds tan to gray, flattened, warped, oblong to subcircular, 5–6 mm diam.; girdle protruding 1–1.5 mm. 2n = 66.


Phenology: Flowering summer (late Jun-early Jul).
Habitat: Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite
Elevation: 0-2400 m

Distribution

V4 281-distribution-map.gif

Alta., B.C., Man., Ont., Sask., Ariz., Calif., Colo., Idaho, Ill., Iowa, Kans., Mich., Minn., Mont., Nebr., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tex., Utah, Wash., Wis., Wyo.

Discussion

Opuntia fragilis is a widespread, though inconspicuous, species; in many places, it flowers infrequently, if at all. Its easily detached stem segments are dispersed by animals and possibly water.

Selected References

None.

Lower Taxa

None.
... more about "Opuntia fragilis"
Donald J. Pinkava +
(Nuttall) Haworth +
Cactus fragilis +
Brittle pricklypear +  and little pricklypear +
Alta. +, B.C. +, Man. +, Ont. +, Sask. +, Ariz. +, Calif. +, Colo. +, Idaho +, Ill. +, Iowa +, Kans. +, Mich. +, Minn. +, Mont. +, Nebr. +, N.Mex. +, N.Dak. +, Okla. +, Oreg. +, S.Dak. +, Tex. +, Utah +, Wash. +, Wis. +  and Wyo. +
0-2400 m +
Barren areas in grasslands, woodlands, sandy or gravelly soils, on outcrops of granite, limestone, or quartzite +
Flowering summer (late Jun-early Jul). +
Suppl. Pl. Succ., +
Opuntia brachyarthra +  and Opuntia fragilis var. brach +
Opuntia fragilis +
species +