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Choose one of the letters above to browse the genera beginning with that letter. Helianthus angustifolius: Narrow-leaved Sunflower Helianthus annuus: Common Sunflower Helianthus annuus x petiolaris Helianthus atrorubens Helianthus ciliaris: Blueweed Sunflower Helianthus decapetalus: Pale Sunflower Helianthus divaricatus: Woodland Sunflower Helianthus giganteus: Tall Sunflower Helianthus grosseserratus: Sawtooth Sunflower Helianthus hirsutus: Bristly Sunflower Helianthus laetiflorus Helianthus maximiliani Helianthus microcephalus: Small Wood Sunflower Helianthus mollis: Downy Sunflower Helianthus occidentalis: Western Sunflower Helianthus pauciflorus Helianthus petiolaris: Petioled Sunflower Helianthus silphioides: False Rosin Weed Helianthus strumosus: Pale-leaved Sunflower Helianthus tuberosus: Jerusalem Artichoke Helianthus unknown Helianthus X brevifolius Helianthus X cinereus Helianthus X luxurians
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