Asarum rhombiformis, the North Fork heartleaf or French Broad heartleaf, is a wildflower of the family Aristolochiaceae found in North Carolina and South Carolina in the United States. The population of this species discovered in 1982 included about 50 plants. It has been postulated that, due to similarities between the three plants, Asarum rhombiformis may be a natural hybrid between Asarum arifolium and another local Asarum species.

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