Shop from variety of products at the Grocery & Gourmet Foods store. Pay COD*. Pay on Delivery. Curcuma zedoaria is a perennial herb and member of the genus Curcuma, family ... The edible rhizome of zedoary has a white interior and a fragran.. Negative side effects of turmeric:It can upset your stomach. The same agents in turmeric that support digestive health can cause irritation when taken in large amounts. ...It thins your blood. Turmeric's purifying properties may also make you bleed more easily. ...It may stimulate contractions.