Fennel seeds are the dried seed of the fennel herb, and look like cumin seeds, only greener. They have an aniseed flavour and a warm, sweet aroma. They can be used on their own or in spice mixes such as Chinese five-spice powder and Indian panch puran.
Black kokum (wild mangosteen) is native to south India. It has a slightly sweet and sour aroma and imparts a refreshing sour taste, similar to tamarind. Kokum can be used to enhance coconut-based curries, especially fish curries or vegetable dishes such as Okra or Dal.