Asteraceae
Gray's feverfew
Parthenium confertum
- Family
- Asteraceae
- Genus
- Parthenium
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Common names
By language (1)
- English
- Gray's feverfew
Synonyms
- Parthenium confertum var. divaricatum Rollins
Flowers
- In flower
- March to June, August to November (from 302 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb, Subshrub
- Lifespan
- Annual, Biennial, Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: Douglas Goldman, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Oscar C. González Martínez, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: lejones417, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: CK2AZ, CC BY 4.0, from iNaturalist 
FlowerPhoto: Evelyn Lazzaretti 🏳️⚧️, CC0, from iNaturalist 
FlowerPhoto: Michelle W. （鍾偉瑋）, CC BY 4.0, from iNaturalist 
Photo: Michelle W. （鍾偉瑋）, CC BY 4.0, from iNaturalist 
Photo: Annika Lindqvist, CC BY 4.0, from iNaturalist 
Photo: Conway Hawn, CC0, from iNaturalist 
Photo: Sam Kieschnick, CC BY 4.0, from iNaturalist 
Photo: Alexa Hoffman, CC BY 4.0, from iNaturalist 
Photo: CK2AZ, CC BY 4.0, from iNaturalist
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- Colorado feverfewParthenium ligulatumAsteraceae
- Parthenium fruticosumAsteraceae
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- Parthenium cineraceumAsteraceae
- Parthenium rollinsianumAsteraceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.