3 bladed leaf?

i am only growing 2 plants but 1 of them has only 3 bladed leafs, it is also the bigger of the 2 and it seems to be very healthy. my question is, what could be the cause.. plant is in a 2 1/2 gallon gallon planter. plant is also alittle over 2 ft tall but i do not want it to get taller because of neighbors. I thought maybe it was a male plant but it is definatly starting to flower nicely. will the bud still be a good smoke?
Thanks

it might just be how the strain is and how it grows.look at the buds.are they nice looking buds?if they look like they will be a good smoke,they probably will be

mature plants can have 3 to 11 blades, but only odd numbers. ;)

I was worried abit, thought maybe it was something odd to have 3 blades, thanks for the replys