Arthrocereus spinosissimus

Arthrocereus spinosissimus is a species of cactus in the subfamily Cactoideae from Brazil.[1][2]

Arthrocereus spinosissimus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Arthrocereus
Species:
A. spinosissimus
Binomial name
Arthrocereus spinosissimus
(Buining & Brederoo) F. Ritter 1979
Synonyms
  • Eriocereus spinosissimus Buining & Brederoo

Description

Arthrocereus spinosissimus grows upright with basally branching shoots. The up to one meter long, green to bright green shoots reach a diameter of 5 to 6 centimeters. The 16 (or more) ribs are 4 to 5 millimeters high. Numerous, thin, yellowish thorns emerge from the closely spaced areoles. There are 6 to 8 central spines that are usually 2 to 2.8 centimeters, occasionally up to 4.5 centimeters in length, and about 20 radial spines of 0.7 to 0.8 centimeters in length.

The white flowers are between 6 and 7 centimeters long, the fruits between 2.5 and 3 centimeters. [3]

Distribution

Arthrocereus spinosissimus is restricted to the Chapada dos Guimarães National Park in the Brazilian state of Mato Grosso at altitudes of 800 to 900 meters.[1]

Taxonomy

The first description as Eriocereus spinosissimus by Albert Frederik Hendrik Buining and Arnold J. Brederoo was published in 1977 from Buining's estate.[4] The specific epithet spinosissimus is derived from the superlative of the Latin adjective spinosus for 'thorny'. Friedrich Ritter placed the species in the genus Arthrocereus in 1979.[5]

References
  1. Braun, P.; Machado, M.; Taylor, N.P. (2017) [amended version of 2013 assessment]. "Arthrocereus spinosissimus". IUCN Red List of Threatened Species. 2017: e.T151916A121449556. doi:10.2305/IUCN.UK.2017-3.RLTS.T151916A121449556.en. Retrieved 14 October 2023.
  2. "Arthrocereus spinosissimus in Tropicos".
  3. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 81. ISBN 3-8001-4573-1.
  4. "Eriocereus spinosissimus BUINING et BREDEROO spec.nov". Au Cactus Francophone (in Latin and German). Retrieved 2023-10-03.
  5. "ARTHROCEREUS SPINOSISSIMUS (BUIN. & BRED.) RITT. comb. nov". Au Cactus Francophone (in German). Retrieved 2023-10-03.
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