Combava - or combawa, also called kaffir lime in some parts of the world - is a variety of limes, easy to identify because of its bumpy skin. Its strong aroma reminds me of lemongrass. The peel (even the leaves) can be used to season or perfume your dishes. Another tropical fruit that reminds me of Madagascar.
Illustration made on Procreate, also displayed on my Instagram: @zatiff