rhizome cylindrical, irregular, bright yellow within.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
The tincture is prepared by macerating 30 grams of bruised rhizome in 200 cc.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
The rhizome should not be used medicinally if more than a year old.
"Herbal Simples Approved for Modern Uses of Cure"
William Thomas Fernie