[Oorang]

Apparently the plant is: akar kuning (Fibraurea tinctoria):

“Days later, Rakus was observed eating the stems and leaves of the creeper akar kuning (Fibraurea tinctoria), which local people use to treat diabetes, dysentery and malaria, among other conditions. Orangutans in the area rarely eat this plant.”
More at the link:
https://www.nature.com/articles/d41586-024-01289-w

[RummyChick]

thanks. i looked around to see where I might buy it. Not listed at Penn Herb.