Arthrocereus glaziovii: Difference between revisions

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Created page with "{{Taxobox | name = Arthrocereus glaziovii | image = Arthrocereus glaziovii.jpg | kingdom = Plantae | family = Cactaceae | subfamily = Cactoideae | tribe = Cereeae | genus = Arthrocereus | species = '''Arthrocereus glaziovii''' | notes = Taxonomy follows Joël Lodé (2015–2019). }} == Description == '''Arthrocereus glaziovii''' is a slender, columnar cactus species native to Brazil. Plants are typically branching from the base, forming clumps of thi..."
 
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| subfamily = [[Cactoideae]]
| subfamily = [[Cactoideae]]
| tribe = [[Cereeae]]
| tribe = [[Cereeae]]
| subtribe = [[Trichocereinae]]
| genus = [[Arthrocereus]]
| genus = [[Arthrocereus]]
| species = '''Arthrocereus glaziovii'''
| species = '''Arthrocereus glaziovii'''
| notes = Taxonomy follows Joël Lodé (2015–2019).
| notes = Taxonomy follows Joël Lodé (2015).
}}
}}


== Description ==
== Description ==
'''Arthrocereus glaziovii''' is a slender, columnar cactus species native to Brazil. Plants are typically branching from the base, forming clumps of thin, erect to slightly arching stems.
'''Arthrocereus glaziovii''' is a slender, columnar cactus species native to Brazil. Plants are usually solitary or weakly branching from the base, forming small clumps with age.


Stems are cylindrical, green to bluish-green, with several low ribs. Areoles are small and bear short, fine spines. Radial spines are numerous and thin, while central spines are few or absent.
Stems are cylindrical, green to bluish-green, relatively thin, with low and inconspicuous ribs. Areoles are small and closely spaced, bearing numerous fine, bristle-like radial spines. Central spines are usually absent or very reduced.


Flowers are nocturnal, tubular to funnel-shaped, usually white, and relatively large compared to the stem diameter. The floral tube bears scales, hairs, and bristles. Fruits are small, globose, and dry when mature.
Flowers are nocturnal, subapical, and tubular to funnel-shaped, typically white to pale pink. The floral tube is elongated and bears scales with hairs and bristles. Fruits are spherical, indehiscent, and retain dried floral remains.


== Distribution ==
== Distribution ==
* Brazil – southeastern regions  
* Brazil – Minas Gerais, Mato Grosso  


Occurs in rocky habitats, often on exposed slopes or among quartzitic outcrops, typically in well-drained soils.
Occurs in dry savannas and rocky habitats, often on well-drained, mineral-rich soils, including ferruginous substrates. Typically found at elevations between 450 and 1500 m.


== Taxonomy ==
== Taxonomy ==
According to '''Joël Lodé''', this species is placed in the genus [[Arthrocereus]].
According to '''Joël Lodé''', this species is placed in the genus [[Arthrocereus]].


The genus is part of the tribe Cereeae and includes several slender, columnar species adapted to rocky environments in Brazil.
Following a proposal by N. Taylor, '''Arthrocereus glaziovii''' was designated as the neotype of the genus to stabilize its taxonomic application.


{{TaxonomySource}}
{{TaxonomySource}}
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* [[Arthrocereus glaziovii]]
* [[Arthrocereus glaziovii]]
* [[Arthrocereus melanurus]]
* [[Arthrocereus melanurus]]
* [[Arthrocereus melanurus subsp. magnus]]
* [[Arthrocereus melanurus subsp. estevesii]]
* [[Arthrocereus rondonianus]]
* [[Arthrocereus rondonianus]]
* [[Arthrocereus spinosissimus]]
* [[Arthrocereus spinosissimus]]


== Synonyms ==
== Synonyms ==
The following names have been associated with this species:
The following name has been historically applied to this species:


* ''[[Cereus glaziovii]]''   
* ''[[Cereus glaziovii]]''   


== Notes ==
== Notes ==
* Adapted to rocky, nutrient-poor environments.
* Serves as the nomenclatural type (neotype) of the genus [[Arthrocereus]].
* Characterized by slender stems and nocturnal flowers.
* Differs from related genera such as [[Echinopsis]] by its slender habit and indehiscent fruits.
* Part of a relatively small and specialized genus.
* Adapted to nutrient-poor, rocky environments typical of Brazilian savannas.


== Cultivation ==
== Cultivation ==
This species can be cultivated with some care:
This species requires careful cultivation:
* requires very well-draining mineral substrate   
* very well-draining mineral substrate   
* prefers bright light but some protection from extreme heat   
* bright light, but protection from extreme midday heat   
* moderate watering during growth   
* moderate watering during active growth   
* keep dry in winter and protect from frost  
* keep dry in winter; sensitive to excess moisture  


[[Category:Cactaceae species]]
[[Category:Cactaceae species]]
[[Category:Flora of Brazil]]
[[Category:Flora of Brazil]]
[[Category:Cereeae]]
[[Category:Cereeae]]
[[Category:Trichocereinae]]

Latest revision as of 16:46, 11 April 2026

Arthrocereus glaziovii
File:Arthrocereus glaziovii.jpg
Kingdom Plantae
Family Cactaceae
Subfamily Cactoideae
Tribe Cereeae
SubTribe Trichocereinae
Genus Arthrocereus
Species Arthrocereus glaziovii
Notes Taxonomy follows Joël Lodé (2015).

Description

Arthrocereus glaziovii is a slender, columnar cactus species native to Brazil. Plants are usually solitary or weakly branching from the base, forming small clumps with age.

Stems are cylindrical, green to bluish-green, relatively thin, with low and inconspicuous ribs. Areoles are small and closely spaced, bearing numerous fine, bristle-like radial spines. Central spines are usually absent or very reduced.

Flowers are nocturnal, subapical, and tubular to funnel-shaped, typically white to pale pink. The floral tube is elongated and bears scales with hairs and bristles. Fruits are spherical, indehiscent, and retain dried floral remains.

Distribution

  • Brazil – Minas Gerais, Mato Grosso

Occurs in dry savannas and rocky habitats, often on well-drained, mineral-rich soils, including ferruginous substrates. Typically found at elevations between 450 and 1500 m.

Taxonomy

According to Joël Lodé, this species is placed in the genus Arthrocereus.

Following a proposal by N. Taylor, Arthrocereus glaziovii was designated as the neotype of the genus to stabilize its taxonomic application.

📚 Taxonomy note: Taxonomic placement follows the system of Joël Lodé (2015–2019).

Species within the genus

Synonyms

The following name has been historically applied to this species:

Notes

  • Serves as the nomenclatural type (neotype) of the genus Arthrocereus.
  • Differs from related genera such as Echinopsis by its slender habit and indehiscent fruits.
  • Adapted to nutrient-poor, rocky environments typical of Brazilian savannas.

Cultivation

This species requires careful cultivation:

  • very well-draining mineral substrate
  • bright light, but protection from extreme midday heat
  • moderate watering during active growth
  • keep dry in winter; sensitive to excess moisture