Answers are grounded in this paper and cite their sources.
Papers from the systematics session of the 1994 international conference 'Compositae: Systematics, Biology, Utilization', devoted to the classification, relationships and evolution of the major groups of this family.
No takes yet. Share an insight, caveat, or question.
Strother et al. (1995) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: