A proposed sectional classification for Mikania (Eupatorieae)
Chemotaxonomy of anthocyanins and phytoalexins in the Compositae
Infrageneric systematics of Tagetes
"Inuleae" - a paraphyletic assemblage
Phytogenetic hypotheses for Asteraceae relationships
Recent revision of Senecioneae and Calenduleae systematics
Sesquiterpene lactones of the Cardueae, subtribe Centaureinae
Taxonomy and evolution of Baccharidinae (Compositae)
The evolution of Carlina - A hypothesis based on ecogeography
The status of generic and subtribal revisions in the Vernonieae