Valmiki Ramayana Yuddha Kanda Sarga 22 Shloka 57

ताळान् palmira, दाडिमगुल्मांश्च dadima trees, नारिकेळविभीतकान् coconut trees, करीरान् karira, बकुलान् bakula, निम्बान् nimba, समन्ततः brought all of them, समाजह्रुः and dropped into the ocean.

They brought palmira, dadima, coconut, karira, bakula and nimba trees and dropped all of them into the ocean.