豆萁

豆萁	dòu qí	(literary) stalk of a bean plant (when dried, used as a cooking fuel)
豆	dòu	legume; pulse; bean; pea (variant of 豆)
豆	dòu	legume; pulse; bean; pea (CL:颗,粒) / (old) stemmed cup or bowl
萁	qí	stalks of pulse