Why are cactuses prickly?

Update: 2024-09-12

Description

Lots of plants are smooth to the touch, and some are even soft and feathery like flowers! So why are cactuses prickly and sometimes even painful? We asked botanist Rachel Jabaily from Colorado College to answer this spine-tingling question.

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#box-pro-ellipsis-173093889297767{-webkit-line-clamp:2;}Why are cactuses prickly?

Why are cactuses prickly?

American Public Media

Why are cactuses prickly?