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{{Short description|Species of plant}}
{{taxobox
{{Speciesbox
|image = Astrophytum_myriostigma_Lem.png
|image = Astrophytum_myriostigma_Lem.png
|image_caption = ''Astrophytum myriostigma''
|image_caption =
|status = LC
|status = LC
|status_system = IUCN3.1
|status_system = IUCN3.1
|genus = Astrophytum
|regnum = [[Plant]]ae
⚫
|species = myriostigma
|unranked_divisio = [[Angiosperms]]
|unranked_classis = [[Eudicots]]
|authority = [[Lem.]]
⚫
|synonyms=*''Echinocactus myriostigma''
|unranked_ordo = [[Core eudicots]]
*''Astrophytum prismaticum''
|ordo = [[Caryophyllales]]
*''Astrophytum columnare''
|familia = [[Cactus|Cactaceae]]
|genus = ''[[Astrophytum]]''
*''Astrophytum tulense''
*''Astrophytum nuda''
⚫
|species = '''''A. myriostigma'''''
⚫
|binomial = ''Astrophytum myriostigma''
|binomial_authority = [[Lem.]]
}}
}}
⚫
'''''Astrophytum myriostigma''''' ([[common name]]s: '''bishop's cap cactus''', '''bishop's hat''' or '''bishop's miter cactus''') is a [[species]] of [[cactus]] native to the highlands of northeastern and central [[Mexico]].


⚫
'''''Astrophytum myriostigma''''', the '''bishop's cap cactus''', '''bishop's hat''' or '''bishop's miter cactus''', is a [[species]] of [[cactus]] native to the [[Highland|highlands]] of northeastern and central [[Mexico]].
⚫
[[Synonymy|Synonyms]] include ''[[Echinocactus]] myriostigma'', ''Astrophytum prismaticum'', ''A. columnare'', ''A. tulense'', and ''A. nuda''.


⚫
[[Synonym (taxonomy)|Synonyms]] include ''[[Echinocactus]] myriostigma'', ''Astrophytum prismaticum'', ''A. columnare'', ''A. tulense'', and ''A. nuda''.
⚫
''A. myriostigma'' is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the genus name "astrophytum", literally, "star plant", is derived from the resulting star-like shape). As the cactus ages, more ribs may be added and it becomes more cylindrical in shape, growing up to about {{cvt|70-100|cm|ftin}} tall and {{cvt|10-20|cm|in|0}} in diameter. In the wild, globose to cylindrical stem is covered with a whitish flocking of trichomes. Some horticultural varieties lack the flocking.


==Morphology==
⚫
''Astrophytum myriostigma'' is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the genus name "astrophytum", literally, "star plant", is derived from the resulting star-like shape). As the cactus ages, more ribs may be added and it becomes more cylindrical in shape, growing up to about {{cvt|70-100|cm|ftin}} tall and {{cvt|10-20|cm|in|0}} in diameter. In the wild, globose to cylindrical stem is covered with a whitish flocking of trichomes. Some horticultural varieties lack the flocking.

==Life cycle==
In the wild, the cacti flower in early spring, so that their seeds can grow with summer rains. In cultivation this differs, and the plants may flower in summer. Plants produce one or more [[flower]]s {{cvt|4-6|cm|in}} diameter near the apex; the numerous [[tepals]] are creamy yellow, sometimes with an orange or red base. [[Pollination|Pollinated]] flowers develop into a hairy reddish [[fruit]] about {{cvt|2-2.5|cm|in|1}} in diameter. Plants may take up to six years to flower. ''A. myriostigma'' is commonly grown as an [[ornamental plant]] in cactus collections.
In the wild, the cacti flower in early spring, so that their seeds can grow with summer rains. In cultivation this differs, and the plants may flower in summer. Plants produce one or more [[flower]]s {{cvt|4-6|cm|in}} diameter near the apex; the numerous [[tepals]] are creamy yellow, sometimes with an orange or red base. [[Pollination|Pollinated]] flowers develop into a hairy reddish [[fruit]] about {{cvt|2-2.5|cm|in|1}} in diameter. Plants may take up to six years to flower. ''A. myriostigma'' is commonly grown as an [[ornamental plant]] in cactus collections.


==Trivia==
This plant has gained the [[Royal Horticultural Society]]'s [[Award of Garden Merit]].<ref>{{cite web|title=RHS Plant Selector - ''Astrophytum myriostigma''|url=https://www.rhs.org.uk/Plants/1878/Astrophytum-myriostigma/Details | accessdate=15 April 2020}}</ref>
This plant has gained the [[Royal Horticultural Society]]'s [[Award of Garden Merit]].<ref>{{cite web|title=RHS Plant Selector - ''Astrophytum myriostigma''|url=https://www.rhs.org.uk/Plants/1878/Astrophytum-myriostigma/Details | accessdate=15 April 2020}}</ref>

==Gallery==
==Gallery==
<gallery>
<gallery>
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Astrophytum myriostigma.jpg
Astrophytum myriostigma.jpg
File:Astrophytum myriostigma flower.jpg
File:Astrophytum myriostigma flower.jpg
File:AstrophytumMyriostigma.JPG
File:AstrophytumMyriostigma.jpg
File:Astrophytum myriostigma 11.JPG
File:Astrophytum myriostigma 11.JPG
File:Astriphytum myriostigma 2.JPG|Old plant
File:Astriphytum myriostigma 2.JPG|Old plant
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==External links==
==External links==
{{commonscat|Astrophytum myriostigma}}
* {{Commons category-inline|Astrophytum myriostigma}}
* [http://www.britannica.com/eb/article-9015421?query=Bishop%27s%20Cap%20Cactus&ct= "Bishop's cap cactus"]. [[Encyclopædia Britannica]]. 28/7/2005.
* [http://www.britannica.com/eb/article-9015421?query=Bishop%27s%20Cap%20Cactus&ct= "Bishop's cap cactus"]. [[Encyclopædia Britannica]]. 28/7/2005.
* [http://www.desert-tropicals.com/Plants/Cactaceae/Astrophytum_myriostigma.html "Bishop's Miter, Bishop's Cap"]. www.desert-tropicals.com. 28/7/2005.
* [http://www.desert-tropicals.com/Plants/Cactaceae/Astrophytum_myriostigma.html "Bishop's Miter, Bishop's Cap"] {{Webarchive|url=https://web.archive.org/web/20080610192016/http://www.desert-tropicals.com/Plants/Cactaceae/Astrophytum_myriostigma.html |date=2008-06-10 }}. www.desert-tropicals.com. 28/7/2005.
* [https://web.archive.org/web/20110724230239/http://www.aiaps-photos.org/recherche_simple.php?a=r&t=s&motsclefs=astrophytum%20myriostigma photos on www.AIAPS.org] {{in lang|fr}}
* [https://web.archive.org/web/20110724230239/http://www.aiaps-photos.org/recherche_simple.php?a=r&t=s&motsclefs=astrophytum%20myriostigma photos on www.AIAPS.org] {{in lang|fr}}
* [http://cactiguide.com/cactus/?genus=Astrophytum&species=myriostigma photos on www.cactiguide.com]
* [http://cactiguide.com/cactus/?genus=Astrophytum&species=myriostigma photos on www.cactiguide.com]

Latest revision as of 18:30, 13 September 2023

Astrophytum myriostigma
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Astrophytum
Species:
A. myriostigma
Binomial name
Astrophytum myriostigma
Synonyms
  • Echinocactus myriostigma
  • Astrophytum prismaticum
  • Astrophytum columnare
  • Astrophytum tulense
  • Astrophytum nuda

Astrophytum myriostigma, the bishop's cap cactus, bishop's hat or bishop's miter cactus, is a species of cactus native to the highlands of northeastern and central Mexico.

Synonyms include Echinocactus myriostigma, Astrophytum prismaticum, A. columnare, A. tulense, and A. nuda.

Morphology

[edit]

Astrophytum myriostigma is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the genus name "astrophytum", literally, "star plant", is derived from the resulting star-like shape). As the cactus ages, more ribs may be added and it becomes more cylindrical in shape, growing up to about 70–100 cm (2 ft 4 in – 3 ft 3 in) tall and 10–20 cm (4–8 in) in diameter. In the wild, globose to cylindrical stem is covered with a whitish flocking of trichomes. Some horticultural varieties lack the flocking.

Life cycle

[edit]

In the wild, the cacti flower in early spring, so that their seeds can grow with summer rains. In cultivation this differs, and the plants may flower in summer. Plants produce one or more flowers 4–6 cm (1.6–2.4 in) diameter near the apex; the numerous tepals are creamy yellow, sometimes with an orange or red base. Pollinated flowers develop into a hairy reddish fruit about 2–2.5 cm (0.8–1.0 in) in diameter. Plants may take up to six years to flower. A. myriostigma is commonly grown as an ornamental plant in cactus collections.

Trivia

[edit]

This plant has gained the Royal Horticultural Society's Award of Garden Merit.[1]

[edit]
  • Old plant
    Old plant
  • A. myriostigma var. quadricostatum
    A. myriostigma var. quadricostatum
  • A. myriostigma var. nudum
    A. myriostigma var. nudum
  • A. myriostigma var. tricostatum
    A. myriostigma var. tricostatum

References

[edit]
  1. ^ "RHS Plant Selector - Astrophytum myriostigma". Retrieved 15 April 2020.
[edit]
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