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Helianthus simulans
Also called Imitative Sunflower
Helianthus simulans is a North American species of sunflower known by the common name muck sunflower. It is native to the southeastern and south-central United States, from eastern Texas to the Carolinas. There are some suggestions that the populations in the eastern half of that range might represent naturalizations.
Helianthus simulans grows in wet, mucky soils in marshes, ditches, and roadsides. It is a perennial herb up to 260 cm (over 8 feet) tall, spreading by means of underground rhizomes. One plant usually produces 1-15 flower heads, each containing 12–23 yellow ray florets surrounding 100 or more red, yellow, or brown disc florets.
Southeastern sunflower · Helianthus ambiguus · Swamp sunflower · Common sunflower · Western sunflower · Silverleaf sunflower · Arizona sunflower · Purpledisk sunflower · Serpentine sunflower · Helianthus brevifolius · California sunflower · Lakeside sunflower
Text excerpted from the Wikipedia article Helianthus simulans by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
