Robuta

https://pubmed.ncbi.nlm.nih.gov/25038696/
Hibiscus sabdariffa L. (Hs, roselle; Malvaceae) has been used traditionally as a food, in herbal drinks, in hot and cold beverages, as a flavouring agent in...
hibiscus sabdariffalreview
https://pubmed.ncbi.nlm.nih.gov/31353728/
We isolated and identified gallic and protocatechuic acids as the antidiabetic principles in Hibiscus sabdariffa using solvent extraction, column...
antidiabeticactivityguidedisolationgallic