Based off of the newly revived thread "Doesn't look like... Petit Negri... but is it?" it would be interesting if someone had some good foliage pictures of these three (VdB,Negronne, & PA)to compare and contrast as well.
I have a Petite Negri from Raintree. It is young (I pinched the primary at 29 inches in July) so based off of the wisdom of the senior members I can't judge leaf shape entirely yet, but they are mostly 5 lobed with a few 7 lobes and the thumbs turn out when present. Funny thing is of all the pic's in that thread mine looks the most like Herman's pictures of Negronne in post #42, less like Petite Aubique, and not at all like the 3 lobed PN.
A mystery wrapped in a conundrum inside an enigma.