Nephroia is a genus of in the family Menispermaceae. It includes three species with a disjunct distribution, with two species in Mexico and the southern and central United States, and one species which ranges from eastern Asia to the South Pacific.[
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Species
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Nephroia carolina – red-berried moonseed or Carolina moonseed, Kansas and Indiana through the southern United States to northeastern Mexico
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Nephroia diversifolia – southern Arizona and southern Texas to southwestern Mexico
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Nephroia orbiculata – Himalayas to Japan and the Central Pacific
