Vascular Plants » Dicots » Asteraceae:
Helianthus
8 species
2 subspecies and varieties
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Common name
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Helianthus annuus
Origin: Native and introduced populations in Washington
Helianthus ciliaris
Origin: Introduced
Helianthus cusickii
Origin: Native
Helianthus grosseserratus
Origin: Introduced from eastern North America along railroads at Bingen and near Spokane
Helianthus maximiliani
Origin: Introduced
Helianthus nuttallii
Origin: Native
• ssp. nuttallii
Helianthus petiolaris
Origin: Introduced from further east
• ssp. petiolaris
Helianthus tuberosus
Origin: Introduced
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