Here are some pics of a couple of toothy smilin' N. macrophylla clones.
This first one is of a clone I got from CZ Plants last year,
This next pitcher is from a Wistuba clone that I also acquired last year.
And this final pic is of the two N. macrophylla clones side by side, with the Wistuba clone on the left and the CZ Plants clone to the right. Both plants are growing in five inch diameter plastic pots.