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Rugelia

Genus of flowering plant From Wikipedia, the free encyclopedia

Rugelia
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Rugelia nudicaulis (Rugel's Indian plantain[2] or Rugels ragwort), the sole species of the genus Rugelia, blooms in summer. It is a wildflower endemic to higher elevations in the Great Smoky Mountains.[3] It is a rare species in Tennessee.[4] Genetic diversity in this plant, assessed using allozymes, is so low that the species may not survive changing environmental conditions.[5] Both the scientific name and the common names honor Ferdinand Rugel, a botanist and plant collector who collected plant specimens throughout the southeastern United States during the period 18401848.

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Taxonomy

The monotypic genus Rugelia was described by the American botanist Alvan Wentworth Chapman in 1860.[6] In his description, Chapman attributed both the generic name Rugelia and the specific epithet nudicaulis to R.J. Shuttleworth.[7] The names honor Ferdinand Rugel,[8] the botanist who collected the type specimen of Rugelia nudicaulis in 1842.[1][9]

In 1883, the American botanist Asa Gray placed Rugelia nudicaulis in genus Senecio as Senecio rugelia.[10] In 1974, Senecio rugelia was placed in genus Cacalia as Cacalia rugelia.[11] As of December 2024, both Senecio rugelia A.Gray and Cacalia rugelia (A.Gray) T.M.Barkley & Cronquist are considered to be homotypic synonyms of Rugelia nudicaulis Shuttlew. ex Chapm.[1]

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References

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