The genus Guadua contains the largest bamboos in tropical America. Stems can reach up to 30m in height and to 20cm in diameter. The name Guadua (pronounced 'gua-du-a') comes from the common name used by the people of Colombia.
Bamboo species of the genus Guadua are native to Central and South America: from Mexico to Paraguay and Argentina, with a center of diversity in western Amazonia. They usually occur in hot lowland regions within forests and savannas.