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Smooth Oxeye (Heliopsis helianthoides (L.) Sweet)

Also known as false sunflower.

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A perennial with yellow, sunflower-like flowers, hence the one common name. Native to a wide range of North America, from the southwest to the northeast; generally more abundant in the north.

Range - Expand

Native or Not Present
Native or Expanded

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

This species is widely planted in gardens and sometimes escapes, but it also has vigorous wild populations spreading on its own. It is expanding its range in the northeast, contiguously with its native range, likely with significant help from humans.