I found some morning glory growing around here, but the have pink flowers. I hear peraly gates, flying saucers, and heavenly blues are the only ones to use, but none of them are pink flowers.
things like heavenly blue, flying saucers, pearly gates, etc. simply contain higher concentrations of LSA than most other morning glories. all contain LSA, but in differing quantities. if you try these, i'd suggest using a good extraction technique to try and get the cleanest product possible, and perhaps use a higher than "normal" dosage (but be careful). people here tend to say "ONLY heavenly blues, etc. contain LSA" but this simply isn't true, its just that most other varieties contain little enough that they may have little effect (or perhaps none at all) when using the more common dosages for the other varieties. therefore, they may or may not be WORTH using, but almost definitely they ARE usable if you're dedicated enough.