Chemosystematic aspects of flavonoid distribution in twenty-two taxa of Helenium

The Systematic Identification of Flavonoids

1970 • 3,918 citations

The systematic identification of flavonoids

1971 • 420 citations

Chromosome Numbers in North and Central American Compositae

1972 • 32 citations

Constituents of Helenium species. XXI. Sesquiterpene lactones of Helenium alternifolium. Structures of brevilin A, linifolin A, and alternilin

1968 • 29 citations

A QUICK METHOD FOR COMPUTING WAGNER TREES

1972 • 18 citations

Taxonomy of Helenium Sect. Tetrodus and a Conspectus of North American Helenium (Compositae)

1972 • 16 citations

Pseudoguianolides in Helenium autumnale from pennsylvania

1972 • 11 citations

Flavone-C-glycosides in Helenium species

1972 • 8 citations

Flavonoids of Helenium brevifolium

1972 • 4 citations