Word, and Resin glands are the sign of potency, if they aren't there, it isn't potent, period, resin glands are the same regardless of where they come from, be it high grade or ditch weed. One could use an oz of high grade to make a piece of hash, one could also make just as potent a piece of hash with ditch weed and far more work but both can be done.
Russian is the record holder for potency, THC labs Sex is rumored to be higher, but finding seeds is nearly impossible and when you can they're over 700 a piece, which may indicate their claims of potency as accurate, being no one would pay that much for seed unless it was the real deal.
White Russian is available, though not feminized, White Widow can be had feminized, WR is Widow x AK47, extremely strong five land race hybrid, leaning more to the growth pattern of the Afghan inside it.
'Destroyer' from Canna bio-gen is the most trich's ive seen in any picture. Completely White with crystals.....Looks unreal in that respect. That Deep-Chunk looks the business in the top pic too.
G'Luck..............Scroger'