Grain
Japonica
A tier
Japonica covers temperate short- and medium-grain rices—plump kernels, lower amylose, soft cling, and the backbone of Japanese, Korean, and northern Chinese table rice as well as many Mediterranean risotto and paella types. Cooler climate adaptation and stickier starch chemistry set them apart from tropical indica in both field and pot. Steam for everyday bowls, season for sushi, or choose specific japonica cultivars for risotto and paella. Washing adjusts surface stick. Japonica is a botanical and market grouping, not one taste: Koshihikari and Arborio both sit under the wide umbrella in different trade and taxonomic conversations.
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Characteristics
Preparations
Traits
Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
History
Japonica agriculture defined Northeast Asian rice diets.
Scientific classification separated japonica from indica.
California japonica industries supplied East Asian diaspora markets.
Japonica remained essential for sushi and temperate rice cultures.