Other than the placement of the pitchers on the vine how can you tell if something is a lower, intermediate or upper pitcher? Is it that lowers have the tendril in the front like this bicalcarata?
Intermediates have it on the side?
Like these ventricosas?
And uppers have it in the back like this bicalcarata?
If you buy a cutting that you didn't know came from a vine that was already producing uppers could this be used to tell? Or any other kind of pitcher along the vine? All my ventratas seem to be upper pitchers and I wondered if this is because they were all cuttings to start with. They have the tendril in the back. Only a few on my basals have it on the side.