Molecular phylogeny of the North American eurybioid asters (Asteraceae, Astereae) based on the nuclear ribosomal internal and external transcribed spacersThis paper is one of a selection of papers published in the Special Issue on Systematics Research.

@article{Selliah2008MolecularPO,
  title={Molecular phylogeny of the North American eurybioid asters (Asteraceae, Astereae) based on the nuclear ribosomal internal and external transcribed spacersThis paper is one of a selection of papers published in the Special Issue on Systematics Research.},
  author={Sugirthini Selliah and Luc Brouillet},
  journal={Botany},
  year={2008},
  volume={86},
  pages={901-915}
}
The eurybioid asters Oreostemma, Herrickia, Eurybia, and Triniteurybia form a complex that is part of the North American clade of tribe Astereae. They comprise 31 species of perennial herbs that ar... 
Systematics of Symphyotrichinae (Asteraceae: Astereae): Disagreements between Two Nuclear Regions Suggest a Complex Evolutionary History
Abstract The systematics of subtribe Symphyotrichinae were studied with sequence data from two nuclear regions: the 18S–26S nrDNA internal and external transcribed spacers (ITS and ETS) and the 5S
Conservatism of responses to environmental change is rare under natural conditions in a native grassland
TLDR
The results suggest that conservatism of the response niche is not common, but is actually rare, and evolutionary relationships are likely to be of limited relevance for predicting species responses under field conditions, at least over the short time scales used in this study.

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