The smooth agave (Agave atroviren) belongs to the Agavaceae (the Agave family). It is an evergreen perennial herb that is highly cultivated for centuries, native populations of this species no longer are in existence. It is thought to have originated from tropical and subtropical eastern Mexico. This agave grows ranging in height from 0.9 to 1.5 m. The leaves are formed in regular rosette patterns, strap-shaped, succulent, deep green to 1.2 m long. The pale yellow flowers blooms once in its lifetime (typically at 10-15 years of age) and dies after completing its life cycle. They bloom on an 2-3 m tall panicled flower stalk. The photos show a variegated variety, which is called "Venezuela-nishiki (cv. Variegata)" in Japan.