|S. depauperatum from the serpentine grassland demonstration area in Nottingham County Park.|
Aster depauperatus Fernald
It occurs in 20 of the 26 serpentine barrens in the eastern United States, and has been called a "flagship" species of this unique ecosystem. It was previously thought to be endemic to these barrens, but it was recently confirmed to also occur in a disjoint population on diabase glades in North Carolina.
Symphyotrichum depauperatum is classified by the state of Pennsylvania as a threatened species because its range is restricted to a few limited areas, and the majority of its populations occur on sites threatened by quarrying, housing and industrial development.
- "Symphyotrichum depauperatum". NatureServe Explorer. NatureServe. Retrieved 2009-11-12.
- Danny J. Gustafson, Roger Earl Latham, "Is the serpentine aster, Symphyotrichum depauperatum (Fern.) Nesom, a valid species and actually endemic to eastern serpentine barrens?", Biodiversity and Conservation, Vol. 14, No. 6 (Jun 2005).
- Serpentine Aster - Pennsylvania Departmentment of Conservation and Natural Resources Wildlife Resource Conservation Fund Profile, Retrieved Sep. 19, 2009.
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