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Areca nuts and their use in traditional Chinese medicines. (a) Fresh betel nuts. (b) Transverse and longitudinal section views of fresh betel nut [2], Copyright 2021 Wiley-VCH. (c) Sliced kernels of dried betel nut (semen arecae); longitudinal cut image of fresh betel nut fruit that has lost a certain amount of moisture. (d) Dry, peeled areca pericarp.
