| 1. | The helianthus ( sunflower ) is a plant that uses heliotropism.
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| 2. | "Helianthus mollis " grows on prairies and roadsides.
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| 3. | "Helianthus cusickii " grows in mountain forests and foothills.
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| 4. | "Helianthus ambiguus " is an herb up to tall.
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| 5. | "Helianthus porteri " grows on granite hillsides.
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| 6. | "Helianthus salicifolius " grows in limestone prairies.
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| 7. | "Helianthus silphioides " grows in open locations.
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| 8. | Helianthus giganteus is a leaves are slender, lanceolate.
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| 9. | The larvae have been recorded feeding on " Helianthus pumilus ".
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| 10. | "Helianthus praecox " grows on sandy soils and coastal prairies.
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