noun
- Stout perennial herb of western United States having flower heads with drooping orange-yellow rays; causes spewing sickness in sheep.
- synonyms: orange sneezeweed, owlclaws
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). helenium hoopesii. Retrieved September 26, 2026, from http://smartdefine.org/helenium_hoopesii/definitions/1284544 |
| Chicago | WordNet. 2010. "helenium hoopesii" http://smartdefine.org/helenium_hoopesii/definitions/1284544 (accessed September 26, 2026). |
| Harvard | WordNet 2010, helenium hoopesii, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/helenium_hoopesii/definitions/1284544>. |
| MLA | WordNet. "helenium hoopesii" 23 October 2010. Web. 26 September 2026. <http://smartdefine.org/helenium_hoopesii/definitions/1284544> |