Caprifoliaceae

Feverwort

Triosteum perfoliatum L.

Family: Caprifoliaceae
Genus: Triosteum

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Feverwort: Plate IX To view the entire book, please visit American Medical Botany . — Photo: uwdigitalcollections, CC BY 2.0, from Wikimedia Commons

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Common names

By language (1)

English: Feverwort, Late horse gentian, Wild coffee

Synonyms

Karpaton hastatum Raf.
Triosteum connatum Raf.
Triosteum majus Michx.
Triosteum obovatum Raf.
Triosteum perfoliatum var. perfoliatum

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Canada: native, Lower 48 states: native

Photos

Photo: uwdigitalcollections, CC BY 2.0, from Wikimedia Commons
Photo: Eric Hunt, CC BY-SA 4.0, from Wikimedia Commons
Photo: Eric Hunt, CC BY-SA 4.0, from Wikimedia Commons

More in Triosteum

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.