Assertion: swamp sunflower | /r/HasProperty | helianthus angustifolius
Facets:
Source sentences:
text: For more information on this plant and photos from our garden, see: Swamp Sunflower, Helianthus angustifolius
text: This spreading habit also characterizes other perennial sunflower varieties, including swamp sunflower (Helianthus augustifolius), which grows from 4 to 8 feet, Helianthus "Lemon Queen" and Helianthus giganteus, which grows to 12 feet.