Agave atrovirens
Agave atrovirens, called Maguey Verde Grande is a type of century plant native to Oaxaca, Pueblo and Veracruz states in Mexico. It is the largest of all the Agaves, occasionally reaching a weight of two tons (2 metric tonnes). Each succulent leaf can be up to 14' 9" (4.5 meters) in length and weigh one hundred pounds (45.5 kg) apiece.[1] In the variety A. a. cochlearis these leaves can also be up to 16 inches (40 cm) wide. [2] As in other Agaves the leaves form a rosette, from the center of which a panicle of flowers emerges on a long scape or peduncle which at first looks like a vast stalk of Asparagus, but later grows to more than forty feet (more than 12 meters) in height, develops side branches near the top and numerous yellow flowers. Agave salmiana, the species with the tallest inflorescences, is frequently lumped with A. atrovirens as the varieties A. a. salmiana or A. a. sigmatophylla. If this is valid, then A. atrovirens also has the largest inflorescences of any Agave, and of any known plant. A. atrovirens is one of the pulque agaves used in the production of tequila.