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Helianthus giganteus
L.
Family:
Asteraceae
[
Helianthus alienus
E.E. Watson,
more
Helianthus altissimus
L.,
Helianthus borealis
E.E. Watson,
Helianthus giganteus ssp. alienus
(E.E. Watson) R.W. Long,
Helianthus subtuberosus
(Britton) Britton,
Helianthus validus
E.E. Watson
]
Resources
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Patrick Sweeney
Patrick Sweeney
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