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The Edible chrysanthemum (Chrysanthemum x moriforium f. esculentus) belongs to Asteraceae (the Aster family). It is a perennial herb that was developed in Japan during the Edo period (1603-1867), and is also called "ryori-giku" (cooking chrysanthemum). There are two types: a medium-flowered type whose petals are edible, and a small-flowered type used as a garnish for sashimi. It grows 50 to 100 cm tall, is well branched, and produces a flower head from October to November. The flower heads are double-petaled and yellow or reddish-purple in color. The petals are thicker and more fragrant than those of the ornamental kiku, and it has a less bitter taste. In Japan, "Shokuyo-giku" (Edible chrysanthemum) is grown mainly in the Tohoku region and Niigata Prefecture. "Tsuma-giku" is mainly grown in Aichi Prefecture.
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