"Heteropanax fragrans minimum germination" is mentioned on this research article:
Seed Germination in Lowland Tropical Rainforest Trees: Interspecies, Canopy and Fruit Type Variations
http://scialert.net/fulltext/?...
It might be that if it is a Heteropanax specie then germination "might" not be the same. Some species seeds have very poor germination rates, others are good. It might only flower once every few years.
I would think the flowers come from the top of the stem as some in this family do.
I've been looking for Heteropanax in Asia as that seems to be where it originates but so far not much luck.
A clue: "Dietary use and conservation concern of edible wetland plants at indo-burma hotspot: a case study from northeast India"
38. Srivastava RC, Singh RK, Mukherjee TK. Bioculturally important rare new plant species of Heteropanax Seems (Araliaceae) from Eastern Himalaya, Arunachal Pradesh. Indian J Tradi Knowle. 2010;9(2):242–244.
http://www.ncbi.nlm.nih.gov/pm...
