These bamboos can spread vigorously and definitely need to be managed. All species of. Phyllostachys, Sasa, Shibataea, Pseudosasa and Pleioblastus are, running bamboos. (Unfortunately these are the bamboos most of the general public know and are afraid of!) The, fargesia are bamboos which are, pachymorph: having sympodial clumping roots like the ornamental grass, Panicum. .