The present invention relates to an ara mandarin, which is a new variety resulting from a mutation of a satsuma mandarin. The ara mandarin, which is a novel mutant satsuma mandarin plant produced by irradiating x-rays to a bud on a branch of an early-maturing C. unshiu Marc. cv. Miyagawa-wase and then grafting and subjecting to asexual reproduction, is very similar to C. unshiu Marc. cv. Miyagawa-wase in terms of flowering, fruiting, and fruit shape, but later compared to C. unshiu Marc. cv. Miyagawa-wase in terms of fruit maturation time. Thus, the ara mandarin can be useful as a novel variety having high economic value.
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