wait and see,shawn. some plants developed the dinstinct frilled tendril at a very early stage, while some takes a while, as in your case, first the flatten tendril and as it aged becoming frilled.
Observance in the wild shows that within the same plant the frilled tendril developed at different stage, that mean to say one pitcher may have an awesome frilled tendril while another only shows the flatten ones. Could this be due to environmental changes, or could it be the gene within the plant...etc ... so much question still unanswer for this group of unique plants
