i've all ways wonderd how exactly you can tell the difference between the two, (sative and indica) recently i had started growing a single plant from bag seed. and was just curious. what features help distinguish from the two? and wich do you guys like best? HERE ARE SOME SHITTY PICTURES OF MY PLANT:
Spanishfly is correct. There are some pure indicas and pure sativas available (or claimed to be so) but most genetics offered today are hybrids. Generally indicas are shorter plants with wider leaves, sativas are taller plants with thinner leaves. Sativas tend to give a trippy head-high while indicas tend to give a body stone couchlock (though the stone of either strain can be manipulated somewhat by the timing of your harvest).