Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun swamp_sunflower
1 sense of swamp sunflower
Sense 1
swamp sunflower, Helianthus angustifolius -- (sunflower of eastern North America having narrow leaves and found in bogs)
=> sunflower, helianthus -- (any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays)