Erigeron Beyrichii (Asteraceae), A New Combination And Redefinition Of A Widespread Taxon In The Southeastern United States

This dataset contains the digitized treatments in Plazi based on the original journal article Noyes, Richard D., Poindexter, Derick (2025): Erigeron Beyrichii (Asteraceae), A New Combination And Redefinition Of A Widespread Taxon In The Southeastern United States. Journal of the Botanical Research Institute of Texas 19 (1): 27-33, DOI: 10.17348/jbrit.v19.i1.1389, URL: doi.org/10.17348/jbrit.v19.i1.1389 ABSTRACT Derick Poindexter University of North Carolina Plant Systematics Researcher, Herbarium Chapel Hill, North Carolina 27599, U.S.A. dpoindex@ad.unc.edu The Erigeron annuus-E. strigosus species complex is an assemblage of several generally narrowly distributed sexual diploid populations in the southeastern United States plus the widespread apomictic polyploid taxa E.annuu s and E.strigosus.

Erigeron strigosus var. beyrichii has previously been used to describe plants with diffuse branching and smaller capitula, and it has also been presumed to be polyploid and apomictic. An herbarium specimen at the University of Georgia (GA) was examined that is a duplicate of an original Beyrich collection made in “ Carolina ” in 1833 that was acquired and distributed by the British Museum (BM).Cotton blue in lactophenol stained pollen provides unambiguous evidence for the diploid and sexual condition of the specimen.