| NOUN | plant | showy sunflower, Helianthus laetiflorus | tall rough-leaved perennial with a few large flower heads |
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| Meaning | tall rough-leaved perennial with a few large flower heads; central United States. | |
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| Synonym | Helianthus laetiflorus | |
| Broader | sunflower, helianthus | Any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays |
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