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Aster × frikartii Silva Tar. & C.K. Schneid.

Freiland-Staud.
Status:Ambiguous
Rank:Species
Family: Compositae

Agoseris × elata (Nutt.) Greene (pro sp.)

Pittonia
Status:Ambiguous
Rank:Species
Family: Compositae

Artemisia × spiciformis Osterh. (pro sp.)

Bull. Torrey Bot. Club
Status:Ambiguous
Rank:Species
Family: Compositae

Carthamus × turkestanicus Popov


Status:Ambiguous
Rank:Species
Family: Compositae

Centaurea × losana Pau


Status:Ambiguous
Rank:Species
Family: Compositae

Centaurea × loscosii Willk.


Status:Ambiguous
Rank:Species
Family: Compositae

Bidens × multiceps Fassett

Rhodora
Status:Ambiguous
Rank:Species
Family: Compositae

Agoseris × agrestis Osterhout (pro sp.)

Bull. Torrey Bot. Club
Status:Ambiguous
Rank:Species
Family: Compositae

Agoseris × dasycarpa Greene (pro sp.)

Pittonia
Status:Ambiguous
Rank:Species
Family: Compositae

Solidago × patuliginosa Friesner

Butler Univ. Bot. Stud.
Status:Ambiguous
Rank:Species
Family: Compositae

Liatris × johnsonii M. White

Phytoneuron
Status:Ambiguous
Rank:Species
Family: Compositae

Liatris × orzellii G.L. Nesom

Phytoneuron
Status:Ambiguous
Rank:Species
Family: Compositae

Balsamorhiza × terebinthacea (Hook.) Nutt.

Trans. Amer. Philos. Soc., n.s.,
Status:Ambiguous
Rank:Species
Family: Compositae

Berlandiera × betonicifolia (Hook.) Small (pro sp.)

Fl. S.E. U.S.
Status:Ambiguous
Rank:Species
Family: Compositae

Berlandiera × humilis Small (pro sp.)

Fl. S.E. U.S.
Status:Ambiguous
Rank:Species
Family: Compositae

Hieracium × sulphureum Doell


Status:Ambiguous
Rank:Species
Family: Compositae

Hieracium × tauschii Zahn


Status:Ambiguous
Rank:Species
Family: Compositae

Hieracium × tephrocephalum Vuk.


Status:Ambiguous
Rank:Species
Family: Compositae

Cousinia × iskanderi Bornm.


Status:Ambiguous
Rank:Species
Family: Compositae

Cousinia × triacantha Kult.


Status:Ambiguous
Rank:Species
Family: Compositae

Hieracium × bifurcum M. Bieb.


Status:Ambiguous
Rank:Species
Family: Compositae

Centaurea × livonica Weinm.


Status:Ambiguous
Rank:Species
Family: Compositae

Cirsium × affine Tausch


Status:Ambiguous
Rank:Species
Family: Compositae

Hieracium × pannoniciforme Litv. & Zahn


Status:Ambiguous
Rank:Species
Family: Compositae