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Species of
Helenium
Helenium aestivale
Walter
(=
Gaillardia aestivalis
(Walter) H. Rock var.
aestivalis
)
Helenium amarum
(Raf.) H. Rock
Helenium amarum
(Raf.) H. Rock var.
amarum
Helenium amarum
(Raf.) H. Rock var.
badium
(A. Gray ex S. Watson) Waterf.
Helenium amphibolium
A. Gray
(=
Helenium elegans
DC. var.
amphibolium
(A. Gray) Bierner
)
Helenium aromaticum
(Hook.) L. H. Bailey
Helenium atacamense
Cabrera
Helenium autumnale
L.
Helenium bigelovii
A. Gray
Helenium elegans
DC.
Helenium elegans
DC. var.
amphibolium
(A. Gray) Bierner
Helenium elegans
DC. var.
elegans
Helenium flexuosum
Raf.
Helenium glaucum
(Cav.) Stuntz
Helenium hoopesii
A. Gray
(=
Hymenoxys hoopesii
(A. Gray) Bierner
)
Helenium microcephalum
DC.
Helenium microcephalum
DC. var.
microcephalum
Helenium microcephalum
DC. var.
ooclinium
(A. Gray) Bierner
Helenium nudiflorum
Nutt.
(=
Helenium flexuosum
Raf.
)
Helenium ooclinium
A. Gray
(=
Helenium microcephalum
DC. var.
ooclinium
(A. Gray) Bierner
)
Helenium puberulum
DC.
Helenium spp.
Helenium tenuifolium
Nutt.
(=
Helenium amarum
(Raf.) H. Rock var.
amarum
)
Helenium thurberi
A. Gray
Helenium urmenetae
(Phil.) Cabrera
Helenium virginicum
S. F. Blake