American Journal of Botany 86(3): 398–[removed]ITS SEQUENCE DATA SUPPORT A SINGLE ORIGIN FOR

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• Astereae
• Oclemena
• Ionactis
• Aster
• Heliantheae
• Psychrogeton
• Maximum parsimony
• Haplopappus
• Calenduleae
• Asteraceae
• Asterales
• Asterids