Robuta

https://species.wikimedia.org/wiki/Plumbago_madagascariensis

Plumbago madagascariensis - Wikispecies

plumbago madagascariensis wikispecies

https://www.sigmaaldrich.com/US/en/substance/plumbaginfromplumbagoindica18818481425

Plumbagin from Plumbago indica - 5-Hydroxy-2-methyl-1,4-naphthoquinone

plumbago indica plumbagin hydroxy methyl