Cleistocactus inquisivensis
Template:Short description Template:Speciesbox Cleistocactus inquisivensis is a species of cactus. It has been treated as Samaipaticereus inquisivensis and Yungasocereus inquisivensis, before being transferred to Cleistocactus in 2023.[1][2] When placed in Yungasocereus, it was the only species.[3]
Description
Cleistocactus inquisivensis is a columnar cactus, appearing either as a tree or shrub, ranging up to 4–5 meters in height. The Template:Cvt diameter stems are dark green, with 6-10 ribs. The Template:Cvt spines are in groups of 4-12, with no differentiation into central and radial types, and range from a brownish to grayish color. The flowers are white, appearing in groups of 5-8 near the stem tips. They open day and night and are Template:Cvt long.
The fruits have a length between Template:Cvt. They contain small, broadly oval, shiny black, slightly keeled seeds on the back, Template:Cvt long and Template:Cvt wide.[4]
Taxonomy
Martín Cárdenas described the species in 1957 from Inquisivi, placing it in Samaipaticereus.[5] Friedrich Ritter later found the same species in Yungas. In 1980, he gave the cactus its own genus, Yungasocereus.[3] After a period in Haageocereus, the species was again separated into Yungasocereus. A 2023 molecular phylogenetic study led to Cleistocactus being expanded to include Yungasocereus and Samaipaticereus.[2] The expansion is accepted by Plants of the World Online since March 2025[update]Template:Dated maintenance category (articles)Script error: No such module "Check for unknown parameters"., with this species accepted as Cleistocactus inquisivensis.[1]
Distribution
Cleistocactus inquisivensis is known only from Yungas and Inquisivi provinces of La Paz Department, where it is found at elevations of around 1000 to 2300 meters.Script error: No such module "Unsubst".
References
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- Edward F. Anderson, The Cactus Family (Timber Press, 2001), p. 681