Is tribulus a steroid, can it stunt growth ? please help

Plant/herb: Tribulus terrestris is a plant/herb touted to have many benefits related to testosterone, none of which have been proven in peer-reviewed published randomized controlled trials (medical gold standard). As a dietary supplement, there is no 3rd party oversight in the States to insure quality control. Check out http://www.mensfitness.com/nutrition/supplements/supplement-guide-tribulus-terrestris