|The cultivar 'Vittata' is a tropical bamboo which grows in open clumps and its culms are spaced a foot or more apart. Its culms are golden yellow with green drip-like vertical stripes. Clump bamboos have underground stems that sprout vertical shoots much closer to their parent plants, growing slowly outward. Clumpers tend to be tropical or subtropical. Bamboo has many uses worldwide from building materials to paper.