Nepal to S. China and Indo-China as per WCSP;
Assam; Bangladesh; China South-Central; China Southeast; East Himalaya; Myanmar;
Nepal; Vietnam
as per Catalogue of Life;

MS,Nov.,2021/26 Macropanax sp. ? for id.: 1 image.
Location : Dampui
Date : unknown
Habit : Tree
Habitat : Wild


Yes, appears to be Macropanax undulatus (Wall. ex G.Don) Seem. as per keys given by you (leaf margin entire) and as per POWO specimen- one.