Parkia speciosa (petai, bitter bean, sataw, twisted cluster bean, yongchaa, yongchaak, zawngtah or stink bean) is a plant of the genus Parkia in the family Fabaceae. It bears long, flat edible beans with bright green seeds the size and shape of plump almonds.

The odour is extremely sulf-hydryl similar to aspects of coffee, the smell of foxes and the pungent smell of methane from garbage fills. Not surprisingly an acquired taste. The aroma is due to specific amino acids and after ingestion the urine may have the characteristic odour for two days after eating. As with other beans flatulence is common and very malodorous.

In food dishes it's used for flavour (?umami) and as a source of carbohydrate. Like broadbeans they need to be peeled prior to cooking. Immature beans can be eaten raw and cooked whole. Once again because of poor analysis and biased marketing, sataw is another of the miracle panaceas. It's not but it does contain good levels of vitamins of the B group, Vitamin C, sugars and high Potassium.