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Saguaro Cactus

Carnegiea gigantea

Description:

The saguaro cactus (Carnegiea gigantea) is one of the defining plants of the Sonoran Desert. These plants are large, tree-like columnar cacti that develop branches (or arms) as they age, although some never grow arms. These arms generally bend upward and can number over 25. Saguaros are covered with protective spines, white flowers in the late spring, and red fruit in summer.

Habitat:

Dry yard in Tucson.

Notes:

Saguaros are found exclusively in the Sonoran Desert. The most important factors for growth are water and temperature. If the elevation is too high, the cold weather and frost can kill the saguaro. Although the the Sonoran Desert experiences both winter and summer rains, it is thought that the Saguaro obtains most of its moisture during the summer rainy season.

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joanbstanley
Spotted by
joanbstanley

Tucson, Arizona, USA

Spotted on Nov 5, 2012
Submitted on Nov 24, 2012

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Reference

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