Saguaro cactus in cactusgarden at Carefree Resort, in Carefree , Arizona.
This giant is 165 years old.
The Saguaro, pronounced "sah-wah-roh", (Carnegiea gigantea) is a large, tree-sized cactus species in the monotypic genus Carnegiea. It is native to the Sonoran Desert in Arizona, the Mexican state of Sonora , and an extremely small area of California. The saguaro blossom is the state flower of Arizona.
Saguaros have a relatively long life span. They take up to 75 years to develop a side arm. The arms themselves are grown to increase the plant's reproductive capacity (more apices equal more flowers and fruit). The growth rate of saguaros is strongly dependent on local precipitation patterns, and saguaros in drier western Arizona grow only half as fast as those in and around Tucson, Arizona. Some specimens may live for more than 150 years.
The night blooming flowers appear April-May and the sweet, ruby-colored fruit matures by late June. Each fruit can contain up to 2,000 seeds.The saguaro is often used as a generic emblem in commercials and logos that attempt to convey a sense of the southwest, even when the product has no connection to Arizona, or the Sonoran Desert. For instance, no saguaros are found within 250 miles (400 km) of El Paso, Texas, but the silhouette is found on the label of Old El Paso brand products. There are also no wild saguaros anywhere in such western U.S. states as Texas, Colorado, Utah, New Mexico, or Nevada.
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發表於 2012-10-14 00:30:35
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