Adzuki Heirloom Beans are a small, oval bean that is reddish-brown in color with a thin white line down the side. The bean is about 1/4″ long with a nutty, sweet flavor and firm texture. This is a bush bean rather than a vine bean. The Adzuki is native to East Asia and was brought to the U.S. in the mid 19th century. When steamed with rice, the bean gives the rice a slightly pink color.