They aren't the strains we get as afghani, those genetics were further modified in holland long before they made it to any of us.
Does this sound like the plant you took it from?
DNA Pure Afghan
The Pure Afghan is an exclusive landrace from the Mazari Sharif region of Afghanistan. This is the only DNA strain that is bred outside of Holland and are from a fresh seed stock. She is a short plant from the mountainous region resulting in her finishing early.
Pure Landrace Afghani
100% Indica
Flowering Time: 7-8 weeks
Yield: 450-550g/m2
http://www.worldwide-marijuana-seeds.com/products/dna-genetics-pure-afghan
There has been info recently that some of the DNA in afghanistan has been identified as neither Indica nor sativa nor the other looser common one with a low thc content I forget the name of, but a true fourth previously uncategorised and scientifically unknown strain. Just FYI...If your plants don't fit the short description and pic above they could be really special.
This 11 bravo guardsman who never went to the middle east sure wishes he had some of those seeds. Not enough that I wish I had gone though.
Protect and save some of those seeds by storing them in tightly sealed containers and out of light and heat, because lately there are rumors of diseases being spread about that ruin seeds before they've even been planted. Fungal shit I forget the name of but doesn't show until half way through and then ruins entire crops.