Parthenocissus inserta from Canada-GS06122021-5: 5 high res. images.
Pathenocissus inserta often confused with P. quinquefolia but differentiated by lustrous leaflets (not opaque), tendrils with less than six branches (not six or more), tips of tendril branches pointed (not with discs) and dichotomous inflorescence (not racemose).
photographed from along Burnhampthorpe Rd Mississauga, Canada, 29-8-2019
POWO gives it as a syn. of Parthenocissus quinquefolia (L.) Planch.
There is another closer taxon as Parthenocissus vitacea (Knerr) Hitchc. as per POWO, with many forms and varieties of Parthenocissus quinquefolia and Parthenocissus inserta as synonyms.
all three databases treat them as distinct taxa
One P. quinquefolia and another P. vitacea (syn: P. incerta)
Earlier it was known as P. vitacea then P. incerta, and now again as P. vitacea.
POWO gives it (Parthenocissus inserta) as a syn. of Parthenocissus quinquefolia (L.) Planch.
if you want to follow POWO, list it as P. vitacea
I have written clearly above that there are two different taxa with distinct characters