Carnegiea gigantea
Saguaro
Life Span: With the right growing conditions, it is estimated that saguaros can live to be as much as 150-200 years old. Size: Saguaro are very slow growing cactus. A 10 year old plant might only be 1.5 inches tall. Saguaro can grow to be between 40-60 feet tall (12-18m). When rain is plentiful and the saguaro is fully hydrated it can weigh between 3200-4800 pounds.
Source: Arizona-Sonora Desert Museum
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Echinocereeae
Genus: Carnegiea
Species: C. gigantea
The image of the saguaro is indelibly linked with that of the American Southwest, especially in western films. The common name saguaro came into the English language through the Spanish language, originating in the Mayo language.
– Wikipedia.