韃だっ靼たん蕎麦そばだったんそばMeanings1nounTartary buckwheat; green buckwheatA species of buckwheat (Fagopyrum tataricum) distinct from common buckwheat; often used for its rutin-rich sprouts and flour.韃だっ靼たん蕎麦そばは普ふ通つうの蕎麦そばより苦にがみが強つよい。