Alocasia macrorrhizos is a species of flowering plant in the arum family, Araceae, that it is native to rainforests from Malaysia to Queensland and has long been cultivated on many Pacific islands and elsewhere in the tropics. Common names include Giant Taro and Elephant Ear Taro, while words for the plant in the various Polynesian languages include Kape (Niuean, Tongan), Ape (Cook Islands Maori, Tahitian, Hawaiian), "ta'amu" in Samoan language, and Pulaka (Tuvalu). In Australia it is known as the "cunjevoi" (although that term also refers to a marine animal). It is edible if cooked for a long time but its sap irritates the skin due to calcium oxalate crytals, or raphides which are needle like. Alocasia species are commonly found in marketplaces in Samoa and Tonga and other parts of Polynesia. The varieties recognized in Tahiti are the Ape oa, haparu, maota, and uahea. The giant heart-shaped leaves make impromptu umbrellas in tropical downpours.