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Cleistocactus hyalacanthus Backeberg 1942

Woolly torch

ParentsUnknownGenus is not in the current taxonomy

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Woolly torch cactus is found in northwestern Argentina and northeastern Bolivia. It is not found in North America.

Identification: Plants are shrublike, up to 3′ (1 m) high. Erect stems are 1½-2″ (4-6 cm) in diameter, with about 20 ribs. Three brown to yellowish central spines are up to 1″ (3 cm) long. In addition, there are 20-30 fine whitish spines of varying length. Flowers are purplish pink, 1¼-1½″ (3.5-4 cm) long; forming small fruits.


Anderson, Edward F., The Cactus Family, Timber Press, 2001, p. 157

Online References:

Wikimedia Commons




Cactus Art: the World of Cacti & Succulents (Cleistocactus hyalacanthus—monstrose crested form)

Cleistocactus straussli var. jujuyensis Backeberg 1935

Cleistocactus jujuyensis (Backeberg) Backeberg 1942


Cleistocactus hyalacanthus description by Thomas H. Kent, last updated 25 May 2020.

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Cleistocactus hyalacanthus (woolly torch)

2/24/2010 · San Diego (Quail) Botanic Garden, Encinitas, Cali­fornia

Range: Zones 10-11:

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