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....3 Leaves broadly cordate, deeply cordate at base; corona of 5 erect, petaloid segments, each divided into 2 slender lobes.
......4 Peduncle usually shorter than the the petiole of the subtending leaf; appendages nearly as long as the corolla, deeply divided into linear segments
......4 Peduncle about as long as, or longer than, the petiole of the subtending leaf; appendages less than 2/3 as long as the corolla, broadly oblong with a totthed or lobed apex