noun
Refers specifically to the white variety of kidney bean (Phaseolus vulgaris), used in cooking.
白隠元を水に浸してから煮る。
Soak the white kidney beans in water and then boil them.
Compound of 白 (shiro, 'white') and 隠元 (ingen, 'kidney bean'). 隠元 is named after the Chinese monk Ingen Ryūki (隠元隆琦), who is said to have introduced the bean to Japan.