Difference between revisions of "Opuntia basilaris"

Engelmann & J. M. Bigelow

Proc. Amer. Acad. Arts 3: 298. 1856.

Common names: Beavertail pricklypear
Illustrated
Treatment appears in FNA Volume 4. Treatment on page 144. Mentioned on page 143.
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|common_names=Beavertail pricklypear
 
|common_names=Beavertail pricklypear
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|special_status={{Treatment/ID/Special_status
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|code=F
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|label=Illustrated
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|basionyms=
 
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--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> forming clumps, 1–2(–3) segments tall, to 7–40 cm. <b>Stem</b> segments not disarticulating, blue- to yellow-green, sometimes tinged maroon-purple, flattened, spatulate to broadly obovate or subcircular, thick, 5–22(–35) × 2–13.5(–16) cm, nearly smooth, papillose to puberulent (rarely glabrous); areoles 4–16(–19) per diagonal row across midstem segment, circular to elliptic, 3–5 × 3 mm; wool white to tan, aging gray. <b>Spines</b> 0(–8) per areole, when present, usually in distal areoles, spreading, yellow, straight, acicular, 5–25 mm. <b>Glochids</b> numerous, nearly filling areoles, yellow to red-brown or dark brown, to 3 mm. <b>Flowers</b>: inner tepals pink to magenta throughout (rarely white), 25–40 mm; filaments red-magenta (rarely pale); anthers yellowish; style white to pink; stigma lobes white to cream. <b>Fruits</b> maturing tan, 20–40 × 15–23 mm, dry at maturity, puberulent, spineless (except in <i></i></i>var.<i><i> treleasei</i>); umbilicus 5–12 mm deep; areoles 24–76. <b>Seeds</b> yellowish to tan, ± subspheric but angular, thick, 6.5–9 × 6.5–7 mm, sides smooth or bearing 1–3 depressions; girdle protruding to 1 mm.</span><!--
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--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> forming clumps, 1–2(–3) segments tall, to 7–40 cm. <b>Stem</b> segments not disarticulating, blue- to yellow-green, sometimes tinged maroon-purple, flattened, spatulate to broadly obovate or subcircular, thick, 5–22(–35) × 2–13.5(–16) cm, nearly smooth, papillose to puberulent (rarely glabrous); areoles 4–16(–19) per diagonal row across midstem segment, circular to elliptic, 3–5 × 3 mm; wool white to tan, aging gray. <b>Spines</b> 0(–8) per areole, when present, usually in distal areoles, spreading, yellow, straight, acicular, 5–25 mm. <b>Glochids</b> numerous, nearly filling areoles, yellow to red-brown or dark brown, to 3 mm. <b>Flowers</b>: inner tepals pink to magenta throughout (rarely white), 25–40 mm; filaments red-magenta (rarely pale); anthers yellowish; style white to pink; stigma lobes white to cream. <b>Fruits</b> maturing tan, 20–40 × 15–23 mm, dry at maturity, puberulent, spineless (except in <i></i>var.<i> treleasei</i>); umbilicus 5–12 mm deep; areoles 24–76. <b>Seeds</b> yellowish to tan, ± subspheric but angular, thick, 6.5–9 × 6.5–7 mm, sides smooth or bearing 1–3 depressions; girdle protruding to 1 mm.</span><!--
  
 
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|distribution=sw United States;n Mexico.
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|distribution=Ariz.;Calif.;Nev.;Utah;n Mexico.
 
|discussion=<p>Varieties 4 (4 in the flora).</p>
 
|discussion=<p>Varieties 4 (4 in the flora).</p>
 
|tables=
 
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name=Opuntia basilaris
 
name=Opuntia basilaris
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|authority=Engelmann & J. M. Bigelow
 
|authority=Engelmann & J. M. Bigelow
 
|rank=species
 
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|basionyms=
 
|basionyms=
 
|family=Cactaceae
 
|family=Cactaceae
|distribution=sw United States;n Mexico.
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|distribution=Ariz.;Calif.;Nev.;Utah;n Mexico.
 
|reference=None
 
|reference=None
 
|publication title=Proc. Amer. Acad. Arts
 
|publication title=Proc. Amer. Acad. Arts
 
|publication year=1856
 
|publication year=1856
|special status=
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|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_274.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_274.xml
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|subfamily=Cactaceae subfam. Opuntioideae
 
|genus=Opuntia
 
|genus=Opuntia
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Latest revision as of 17:03, 6 November 2020

Shrubs, forming clumps, 1–2(–3) segments tall, to 7–40 cm. Stem segments not disarticulating, blue- to yellow-green, sometimes tinged maroon-purple, flattened, spatulate to broadly obovate or subcircular, thick, 5–22(–35) × 2–13.5(–16) cm, nearly smooth, papillose to puberulent (rarely glabrous); areoles 4–16(–19) per diagonal row across midstem segment, circular to elliptic, 3–5 × 3 mm; wool white to tan, aging gray. Spines 0(–8) per areole, when present, usually in distal areoles, spreading, yellow, straight, acicular, 5–25 mm. Glochids numerous, nearly filling areoles, yellow to red-brown or dark brown, to 3 mm. Flowers: inner tepals pink to magenta throughout (rarely white), 25–40 mm; filaments red-magenta (rarely pale); anthers yellowish; style white to pink; stigma lobes white to cream. Fruits maturing tan, 20–40 × 15–23 mm, dry at maturity, puberulent, spineless (except in var. treleasei); umbilicus 5–12 mm deep; areoles 24–76. Seeds yellowish to tan, ± subspheric but angular, thick, 6.5–9 × 6.5–7 mm, sides smooth or bearing 1–3 depressions; girdle protruding to 1 mm.

Distribution

V4 274-distribution-map.gif

Ariz., Calif., Nev., Utah, n Mexico.

Discussion

Varieties 4 (4 in the flora).

Selected References

None.

Key

1 Stem segments bearing spines in at least several of distal areoles Opuntia basilaris var. treleasei
1 Stem segments essentially spineless (rarely 1-few per stem segment) > 2
2 Stem segments broadly obovoid to subcircular, erect; areoles (8-)10-16(-19) per diagonal row across midstem segment Opuntia basilaris var. basilaris
2 Stem segments spatulate to elongate, oblong, usually decumbent; areoles 4-8(-9) per diagonal row across midstem segment > 3
3 Stem segments spatulate, apex rounded; areoles 4-8(-9) per diagonal row across midstem segment; Arizona, Utah. Opuntia basilaris var. longiareolata
3 Stem segments oblong to narrowly spatulate to subcylindric, apex truncate to rounded; areoles 4-6(-7) per diagonal row across midstem segment; California Opuntia basilaris var. brachyclad