indica is a short bushy plant while sativa is a tall plant indica gives you sort of a body numbing feeling while sativa gives a more up lifting high indica tends to be darker in color and produces a much more thick smoke cousing some people to cough and sativas smoke is smooth and generally sativas will be lighter in color and buds will be kinda long if grown properly while indacas tend to have more thick and dense budding i hope that helps though remember it would be improbable that you find a 100 percent indica or sativa