botanical information about Helianthus annuus 'Sonja'
- Botanical name: Helianthus annuus 'Sonja'
- Genus: Helianthus
- Family: Asteraceae
- Other names: Zonnebloem Sonja - Helianthus annuus Orange With Dark Center - Helianthus annuus Sonja - Orange - Helianthus annuus Sonja
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