- Helianthus angustifolius as a noun:
- 1
Helianthus angustifolius
noun
1 Helianthus angustifolius
Sunflower of eastern North America having narrow leaves and found in bogs.
synonym: swamp sunflower.
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noun
Sunflower of eastern North America having narrow leaves and found in bogs.
synonym: swamp sunflower.
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