Funding for this research was provided by:
Ministry of Higher Education, Malaysia (FRGS/1/2015/SG05/UKM/02/1)
Received: 23 December 2020
Accepted: 15 March 2021
First Online: 25 March 2021
: Collection of plant materials for scientific research has been conducted in compliance with the Convention on the Trade in Endangered Species of Wild Fauna and Flora [CitationRef removed].
: Not applicable.
: The authors declare that there are no competing interests.