The cuisine is highly centered around many varieties of rice, as well as coconut which is a ubiquitous plant throughout the country. Seafood also plays a significant role in the cuisine, be it fresh fish or preserved fish. As a country that was a hub in the historic oceanic silk road, contact with foreign traders brought new food items and cultural influences in addition to the local traditions of the country's ethnic groups, all of which have helped shape Sri Lankan cuisine. Influences from Indian (particularly South Indian), Indonesian and Dutch cuisines are most evident with Sri Lankan cuisine sharing close ties to other neighbouring South and Southeast Asian cuisines.