Pulaka, Cyrtosperma merkusii, or swamp taro, is a crop grown in Tuvalu and an important source of carbohydrates for the area's inhabitants. It is a "swamp crop" similar to taro, but "with bigger leaves and larger, coarser roots." The same plant is known as babai in Kiribati, puraka in Cook Islands, pula’a in Samoa, via kan in Fiji, Pulaka in Tokelau, simiden in Chuuk, swam taro in PNG, and navia in Vanuatu.

Pulaka, Cyrtosperma merkusii, or swamp taro, is a crop grown in Tuvalu and an important source of carbohydrates for the area's inhabitants. It is a "swamp crop" similar to taro, but "with bigger leaves and larger, coarser roots." The same plant is known as babai in Kiribati, puraka in Cook Islands, pula’a in Samoa, via kan in Fiji, Pulaka in Tokelau, simiden in Chuuk, swam taro in PNG, and navia in Vanuatu.