Scallion Allium x wakegi Araki
(Satsuma-cho, Kagoshima, purchased on September 13, and provided October 1, 2012)
Starch granules extracted from brownish coating parts of its bulb
*Allium species change starch granules to carbohydrates without storing into any storage tissues, and so we cannot see so many starch granules of these plants.
Ernst, M., G. Bufler. 1994. Stems of Allium cepa L. contain starch. New Phytologist 128 (3): 403-406.