amanatsu; Japanese summer orange
A less sour variety of the natsumikan (Citrus natsudaidai). Often called 甘夏 (amanatsu) in everyday contexts.
See also: 甘夏
Kawanonatsudaidai, also called amanatsu, is suitable for eating fresh.
このジャムはカワノナツダイダイの果皮を使っている。
This jam uses the peel of the Japanese summer orange.
Common name for the same fruit; カワノナツダイダイ is the full cultivar name, while 甘夏 is the everyday term.
Natsumikan is the broader species; カワノナツダイダイ is a specific, less sour cultivar.
Katakana spelling is standard for this citrus name; usually written in kana.
Kanji spelling is rare and mainly found in botanical or historical contexts.
Named after the Kawano area and the natsudaidai (summer orange) species. The exact origin of the cultivar name is uncertain.