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Heliopsis helianthoides
Also called Rough Oxeye, Sunflower Heliopsis, False Sunflower, Sunflower Everlasting, Sweet Oxeye, Oxeye
Smooth oxeye is a rhizomatous, sun-loving native perennial of eastern and central North America, grown for its bright yellow daisy-like flowers from midsummer to early fall. It is easy to grow in sun and reasonably drought tolerant once established.
Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names rough oxeye, smooth oxeye and false sunflower. It is native to eastern and central North America from Saskatchewan east to Newfoundland and south as far as Texas, New Mexico, and Georgia.
Heliopsis helianthoides is a rhizomatous herbaceous perennial growing 40–150 cm (16–59 in) tall. The toothed leaf blades are oval to triangular or lance-shaped and may be smooth or hairy or rough in texture. The flowers are produced from midsummer to early autumn (fall). The inflorescence contains one to many composite flowerheads. Each head contains yellow ray florets which are generally 2–4 cm (3⁄4–1+1⁄2 in) long. The rays are fertile, having a small forked pistil at the base; this distinguishes them from true sunflowers. At the center are many yellow to brownish disc florets.
Text excerpted from the Wikipedia article Heliopsis helianthoides by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
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.
