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Invasive Plants Also a Problem

A forest of saguaro cacti among other plants.
A forest of saguaro cacti among other plants. Photo: Jon G. Fuller / VWPics via AP Images (AP)

It’s not just high temperatures that are threatening the cacti. Invasive plant species like buffelgrass have been increasingly showing up in the saguaro’s habitat over the past 20 years. This grass can provide fodder for the wildfires that sweep through the desert.