Chiefly Mexican, agaves are also native to other places in the United States, in central and tropical South America and other places, even in Europe. They are succulents with a large rosette of thick, fleshy leaves, each ending generally in a sharp point and with a spiny margin; the stout stem is usually short, the leaves apparently springing from the root. Along with plants from the related genus Yucca, various Agave species are popular ornamental plants.
Each rosette is monocarpic and grows slowly to flower only once. During flowering, a tall stem or "mast" ("quiote" in Mexico) grows from the center of the leaf rosette and bears a large number of short, tubular flowers. After development of fruit, the original plant dies, but suckers are frequently produced from the base of the stem, which become new plants.
It is a common misconception that agaves are cacti. They are not related to cacti, nor are they closely related to Aloe whose leaves are similar in appearance.