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Acanthocereus is a genus of cacti. Its species take the form of shrubs with arching or climbing stems up to several meters in height. The generic name is derived from the Greek word άκανθα ( acantha ), meaning spine, [ 3 ] and the Latin word cereus , meaning candle . [ 4 ]
Acanthocereus tetragonus is a tall, columnar cactus that reaches a height of 2–7 m (6.6–23.0 ft). Stems are dark green, have three to five angles, and are 6–8 cm (2.4–3.1 in) in diameter. Stems are dark green, have three to five angles, and are 6–8 cm (2.4–3.1 in) in diameter.
The classification of the Cactaceae thus remains subject to change, from the genus level upwards. In 2016, David Hunt wrote that "the advent of molecular systematic studies in the past two decades will hopefully have a stabilizing effect on classification in due course, but has so far had the opposite effect".
The International Cactaceae Systematics Group classification, based on Barthlott & Hunt (1993), recognized six genera within the tribe. [ 4 ] [ 7 ] Subsequent studies suggested a number of changes, for example including Acanthocereus in the tribe and excluding Strophocactus (which had been sunk into Selenicereus ).
Strophocactus sicariguensis was first described, as Acanthocereus sicariguensis, in 1947. [1] It was transferred to the genus Pseudoacanthocereus as Pseudoacanthocereus sicariguensis by Nigel P. Taylor in 1992, [5] a placement still accepted by some sources as of February 2021. [2]
Classification is the process in which ideas and objects are recognized, differentiated, and understood, and classification charts are intended to help create and eventually visualize the outcome. According to Brinton "in a classification chart the facts, data etc. are arranged so that the place of each in relation to all others is readily seen.
The basic ranks are species and genus. When an organism is given a species name it is assigned to a genus, and the genus name is part of the species name. The species name is also called a binomial, that is, a two-term name. For example, the zoological name for the human species is Homo sapiens. This is usually italicized in print or underlined ...
The Cactoideae are the largest subfamily of the cactus family, Cactaceae, and are widely distributed throughout the Americas.Cactaceae is the 5th most endangered plant or animal family evaluated globally by the International Union for Conservation of Nature. [1]