Rugelia nudicaulis

Rugelia nudicaulis, or Rugels ragwort, a member of the genus Rugelia which blooms in summer, is a wildflower found only at higher elevations in the Great Smoky Mountains. It is a rare species in Tennessee[1]. It was first placed in the genus Senecio, then moved to Cacalia and finally placed in a genus of its own Rugelia. Genetic diversity in this plant, assessed using allozymes, is so low that the species may not survive changing environmental conditions. [2] [3]

References

1. Horn, Cathcart, Hemmerly, Duhl, Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians, Lone Pine Publishing, (2005) p 372, ISBN-13:978-1-55105428-5

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