Silver torch cactus is a pretty cactus native to the high mountains of
Bolivia and Argentina. Its slender, erect, grey-green columns can reach a
height of 10 ft, but are usually only about 2.5 in across. The columns are
formed from around 25 ribs and are densely covered with areoles,
supporting four yellow-brown spines up to 2 in long and 20 shorter white
radials. Older cactuses, over 1.5 ft tall, produce deep red, burgundy,
flowers in late summer. The 3 in long cylindrical flowers protrude
horizontally from the columns. In common with other cacti in the genus
Cleistocactus, the flowers hardly open, with only the style and stamens
protruding.
Identification credit: Tabish
Photographed in Munnar, Kerala.
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The flower labeled Silver Torch Cactus is ...