The legs are the roots, be careful they are brittle when planting. the brown twiggy stuff is last years growth. Make certain you plant them in the shade with extra compost and water.

Here is a link that might be useful: Propagating Perennials

Be sure to mark the planting location, as the foliage dies down in summer and once you remove the old foliage, there is no indication that they are there.
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