什么是 arrowroot?A starch obtained from the rhizomes of a tropical American perennial herb (Maranta arundinacea). It is used especially in cooking as a thickener.The rhizome of this plant, cooked and eaten as a vegetable or used for starch extraction.The plant itself.The edible starch obtained from the rhizomes or tubers of plants in the genera Canna and Tacca.Any of these plants.