bamboo ?
the original poster may have found his answer, there may be others wondering the same thing. although i am relatively sure there are places in the wild where chams and bamboo co-exist without issue, however a captive enviroment creates special issues and it is not usually found on most cham safe plant lists, and with approximately 1000 varieties, exact identification can be difficult, and some varieties are reported to be harmful, i do have (lucky) bamboo in one of my cages, but my jax never eat it or show interest in it and they rarely climb on it, so i guess the real answer would be that it depends on the type of cham (whether or not it tends to eat plants) and the type of bamboo./ i am not recomending it and my opinion would be the same as for many cham issues , when in doubt avoid. jmo