Region: Southeast Asia, southern Indochina, Malay Peninsula, Sumatra, Borneo.
Habitat: tropical forests, peat swamp forests
Content: xanthones: ploiarixanthone, euxanmodin A, and euxanmodin B; anthraquinones emodin, ploiariquinone A; 1,8-dihydroxy-3-methoxy-6- methyl-anthraquinone; triterpenoid benzoates; terpenoids, alkaloids, polyphenols, flavonoids, steroids, saponins
BotanyWoody plants; slow growing; irregular flowering and fruiting cycles, improved by arbuscular mycorrhizal fungi.