Analysis of DNA sequence data shows that the African members of <em>Stomatanthes</em> should be merged with <em>Eupatorium</em>

Analysis of DNA sequence data from the nuclear ribosomal ITS and ETS regions and the plastid spacer trnH-psbA showed that African species of Stomatanthes nested within the widely distributed Eupatorium (North America, Europe, Asia should be included within it. A survey of ITS sequences from herbarium specimens of Stomatanthes from Africa confirmed their monophyly and showed some variability that did not correlate with current species boundaries.