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    Saguaro

    National Park Arizona

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  • Tucson Mountain District Roads Closed Due to Flash Flooding

    Several interior roads, including the scenic loop, are closed in Tucson Mountain District (west) due to severe storms and flash flooding during the week of July 6. Crews are working to repair the roads and expect to reopen on Friday, July 11. More »

  • Fire Restrictions in effect for Saguaro National Park

    Due to fire danger in Southern Arizona, Saguaro National Park will implement fire restrictions beginning Thursday, June 5, 2014. Restrictions prohibit campfires, charcoal, coal or wood stove fires, fireworks, and smoking except within enclosed vehicles. More »

Cacti / Desert Succulents

Saguaro National Park is home to 25 species of cactus ranging from the towering saguaro cactus (Carnegiea gigantea) to the tiniest type of cactus in the park, the mammillaria (Mammillaria spp). The most common cacti species at Saguaro National Park and within Tucson, Arizona include:

Saguaro cactus (Carnegiea gigantea)

Fishhook barrel cactus (Ferocactus wislizenii)

Staghorn cholla cactus (Opuntia versicolor)

Pinkflower hedgehog cactus (Echinocereus fendleri var. fasciculatus)

Engelman's prickly pear cactus (Opuntia engelmannii)

Teddybear cholla cactus (Opuntia bigelovii)

Chainfruit (jumping) cholla cactus (Opuntia fulgida)

 

Did You Know?

Fire

Buffelgrass burns at 1300-1600 F, hot enough to melt aluminum and the fire can travel near the speed of the wind. Even in moderate weather, it can travel at 2-3 mph with 12-18 ft flame lengths, making it a real threat to the lives of firefighters