Difference between revisions of "Opuntia aurea"

E. M. Baxter

Cact. Succ. J. (Los Angeles) 5: 489, fig. s.n. (p. 489). 1933.

Synonyms: Opuntia basilaris var. aurea (E. M. Baxter) W. T. MarshallOpuntia erinacea var. aurea (E. M. Baxter) S. L. Welsh
Treatment appears in FNA Volume 4. Mentioned on page 145.
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--><span class="statement" id="st-d0_s0" data-properties="shrub some measurement;clump position;branch orientation"><b>Shrubs,</b> forming low clumps or with trailing branches, 10–30 cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem segment architecture;stem segment coloration;stem segment coloration;stem segment coloration;stem segment shape;stem segment shape;stem segment shape;stem segment shape;stem segment length;stem segment width;stem segment position;stem segment relief;stem segment relief"><b>Stem </b>segments not disarticulating, green to blue-green, flattened, elliptic to obovate, 6–15 × 5–12 cm, low tuberculate, papillate;</span> <span class="statement" id="st-d0_s2" data-properties="areole count;areole shape;areole shape;areole shape;areole length;areole width">areoles 7–11 per diagonal row across midstem segment, subcircular to elliptic, 3–5 × 2–4 mm;</span> <span class="statement" id="st-d0_s3" data-properties="wool coloration">wool tan.</span> <span class="statement" id="st-d0_s4" data-properties="spine count;spine count;spine orientation;spine coloration;spine coloration;spine coloration;spine course;spine shape;spine some measurement;distal areole count"><b>Spines </b>absent or only l spine in 1–few distal areoles, deflexed, yellow to gray, straight, terete, to 10 mm.</span> <span class="statement" id="st-d0_s5" data-properties="glochid coloration;glochid some measurement;subapical tuft density"><b>Glochids </b>in dense crescent at adaxial margin of areole and dense subapical tuft, yellow, to 6 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 (magenta in introgressed plants), 25–30 mm;</span> <span class="statement" id="st-d0_s7" data-properties="filament coloration;filament coloration;filament coloration">filaments white 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 white;</span> <span class="statement" id="st-d0_s10" data-properties="stigma lobe coloration">stigma lobes green.</span> <span class="statement" id="st-d0_s11" data-properties="fruit coloration;fruit coloration;fruit coloration;fruit length;fruit width;fruit condition or texture;fruit architecture"><b>Fruits </b>tan to gray, 25–30 × 15–20 mm, dry, spineless;</span> <span class="statement" id="st-d0_s12" data-properties="areole count">areoles 12–18.</span> <span class="statement" id="st-d0_s13" data-properties="seed coloration;seed shape;seed shape;seed shape;seed shape;seed size;seed diameter"><b>Seeds </b>tan, subspheric to irregularly shaped, flattened, very large, 9–12 mm diam.;</span> <span class="statement" id="st-d0_s14" data-properties="girdle width;girdle prominence;girdle some measurement;2n chromosome count">girdle thick, protruding 2.5–3.5 mm. <b>2n</b> = 66.</span><!--
+
--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> forming low clumps or with trailing branches, 10–30 cm. <b>Stem</b> segments not disarticulating, green to blue-green, flattened, elliptic to obovate, 6–15 × 5–12 cm, low tuberculate, papillate; areoles 7–11 per diagonal row across midstem segment, subcircular to elliptic, 3–5 × 2–4 mm; wool tan. <b>Spines</b> absent or only l spine in 1–few distal areoles, deflexed, yellow to gray, straight, terete, to 10 mm. <b>Glochids</b> in dense crescent at adaxial margin of areole and dense subapical tuft, yellow, to 6 mm. <b>Flowers</b>: inner tepals yellow throughout (magenta in introgressed plants), 25–30 mm; filaments white to yellow; anthers yellow; style white; stigma lobes green. <b>Fruits</b> tan to gray, 25–30 × 15–20 mm, dry, spineless; areoles 12–18. <b>Seeds</b> tan, subspheric to irregularly shaped, flattened, very large, 9–12 mm diam.; girdle thick, protruding 2.5–3.5 mm. <b>2n</b> = 66.</span><!--
  
 
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|phenology=Flowering late spring (May–Jun).
 
|habitat=Pinyon-juniper woodlands, red sands
 
|habitat=Pinyon-juniper woodlands, red sands
 
|elevation=1500-1800 m
 
|elevation=1500-1800 m
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|basionyms=
 
|basionyms=
 
|family=Cactaceae
 
|family=Cactaceae
 +
|phenology=Flowering late spring (May–Jun).
 
|habitat=Pinyon-juniper woodlands, red sands
 
|habitat=Pinyon-juniper woodlands, red sands
 
|elevation=1500-1800 m
 
|elevation=1500-1800 m
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|publication year=1933
 
|publication year=1933
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V4/V4_279.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_279.xml
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|genus=Opuntia
 
|genus=Opuntia
 
|species=Opuntia aurea
 
|species=Opuntia aurea
|2n chromosome count=66
 
|anther coloration=yellow
 
|areole count=12;18
 
|areole length=3mm;5mm
 
|areole shape=subcircular;elliptic
 
|areole width=2mm;4mm
 
|branch orientation=trailing
 
|clump position=low
 
|distal areole count=1;few
 
|filament coloration=white;yellow
 
|fruit architecture=spineless
 
|fruit coloration=tan;gray
 
|fruit condition or texture=dry
 
|fruit length=25mm;30mm
 
|fruit width=15mm;20mm
 
|girdle prominence=protruding
 
|girdle some measurement=2.5mm;3.5mm
 
|girdle width=thick
 
|glochid coloration=yellow
 
|glochid some measurement=0mm;6mm
 
|inner tepal coloration=yellow
 
|inner tepal some measurement=25mm;30mm
 
|seed coloration=tan
 
|seed diameter=9mm;12mm
 
|seed shape=flattened;subspheric;irregularly-shaped
 
|seed size=large
 
|shrub some measurement=10cm;30cm
 
|spine coloration=yellow;gray
 
|spine count=only;absent
 
|spine course=straight
 
|spine orientation=deflexed
 
|spine shape=terete
 
|spine some measurement=0mm;10mm
 
|stem segment architecture=not disarticulating
 
|stem segment coloration=green;blue-green
 
|stem segment length=6cm;15cm
 
|stem segment position=low
 
|stem segment relief=papillate;tuberculate
 
|stem segment shape=elliptic;obovate
 
|stem segment width=5cm;12cm
 
|stigma lobe coloration=green
 
|style coloration=white
 
|subapical tuft density=dense
 
|wool coloration=tan
 
 
}}<!--
 
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-->[[Category:Treatment]][[Category:Opuntia]]
 
-->[[Category:Treatment]][[Category:Opuntia]]

Revision as of 14:03, 27 July 2019

Shrubs, forming low clumps or with trailing branches, 10–30 cm. Stem segments not disarticulating, green to blue-green, flattened, elliptic to obovate, 6–15 × 5–12 cm, low tuberculate, papillate; areoles 7–11 per diagonal row across midstem segment, subcircular to elliptic, 3–5 × 2–4 mm; wool tan. Spines absent or only l spine in 1–few distal areoles, deflexed, yellow to gray, straight, terete, to 10 mm. Glochids in dense crescent at adaxial margin of areole and dense subapical tuft, yellow, to 6 mm. Flowers: inner tepals yellow throughout (magenta in introgressed plants), 25–30 mm; filaments white to yellow; anthers yellow; style white; stigma lobes green. Fruits tan to gray, 25–30 × 15–20 mm, dry, spineless; areoles 12–18. Seeds tan, subspheric to irregularly shaped, flattened, very large, 9–12 mm diam.; girdle thick, protruding 2.5–3.5 mm. 2n = 66.


Phenology: Flowering late spring (May–Jun).
Habitat: Pinyon-juniper woodlands, red sands
Elevation: 1500-1800 m

Discussion

Opuntia aurea forms hybrids with O. polyacantha var. erinacea and O. phaeacantha, and forms hybrid swarms with O. pinkavae (B. D. Parfitt 1991).

Selected References

None.

Lower Taxa

None.