GUADUA is a genus of giant, thorny, tropical clumping bamboos native to the New World. Clumps very open. Some older references include them in Bambusa.

Genus speciesMax HeightMax DiameterMinimum TemperatureComments/Description
G.amplexifolia60‘4″28FShort internodes, semi-solid in lower culm.
G.angustifolia100′8″30FThe largest of the Guaduas.  Culms used for construction. Grows to at least 70′ & 6.5″ dia. in S.Florida.
G.angustifolia ‘Bicolor’100′8″30FSimilar to G.angustifolia, but with large yellow stripes on green culms.
G.angustifolia ‘Lesser Thorny’100′8″30FSimilar to G.angustifolia, but with significantly fewer and smaller thorns.
G.chacoensis85′7″?A large, woody, thorny, green bamboo with erect culms. From Argentina, Paraguay, and Brazil. Frequently confused with G.angustifolia. May grow taller than listed
G.velutina60′4″28FSimilar to G.amplexifolia. Culms thick-walled but not solid. New shoots have beautiful maroon culm sheaths which cling to the lower internodes.
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