Anyone can know this strain ?

i need to know the strain because i don't know how long does it flower ? So as far as i know i need to flush at least one week before harvest.if anyone have idea, i will be glad...
Thanks in advance

You will be hard pressed to find anyone that can tell you the strain of your plant, especially when these two pics are all they have to go on. Your best bet is to flower until the plant tells you it's done, and most plants flower between 60 and 80 days. Although some strains can go a little longer and some a little quicker. You need to watch your hairs, once about 2/3 of them turn red you are ready for harvest. If you have a microscope you can look at your Trichs (Crystals) and they usually turn a cloudy white when the plant is about ready. There are all kinds of variables with each grow. Look for tips and tricks on this forum, you should do some reading and you will probably find your answer. Good Luck.

Looks like og kush.

You don't have to know what strain it is; just flower it until it's ready. Look at the trichs (the little mushroom thingies) and when they turn from clear to cloudy, maybe some turning amber, it's time to chop.