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Asteraceae

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Galinsoga quadriradiata Ruiz & Pav.

Gordon C. Tucker
Galinsoga quadriradiata Ruiz & Pav.

Gordon C. Tucker
Galinsoga quadriradiata Ruiz & Pav.

Gordon C. Tucker and Edwin H. Horning
Gnaphalium L.

Gordon C. Tucker
Gnaphalium obtusifolium L.

Hiram F. Thut
Gnaphalium obtusifolium L.

Gordon C. Tucker
Gnaphalium obtusifolium L.

Gordon C. Tucker
Gnaphalium obtusifolium L.

Gordon C. Tucker and John E. Ebinger
Gnaphalium obtusifolium L.

Jennifer Ward
Gnaphalium uliginosum L.

Gordon C. Tucker
Gnaphalium uliginosum L.

Tad M. Zebryk
Gnaphalium uliginosum L.

Tad M. Zebryk
Helenium autumnale L.

Jason Cunningham
Helenium autumnale L.

Gordon C. Tucker
Helenium autumnale L.

Gordon C. Tucker and Daniel M. Tucker
Helenium autumnale L.

Tad M. Zebryk
Helenium flexuosum Raf.

Tad M. Zebryk
Helenium L.

Gordon C. Tucker
Helianthus annuus L.

Gordon C. Tucker
Helianthus decapetalus L.

Tad M. Zebryk
Helianthus divaricatus L.

John E. Ebinger
Helianthus divaricatus L.

Jason Haas
Helianthus divaricatus L.

Vincent Hustad
Helianthus divaricatus L.

L.J. Mehrhoff
Helianthus divaricatus L.

N. L. Owens