What does agueweed mean?
Agueweed is a traditional common name for several medicinal plants once prized as treatments for ague — the old term for intermittent fever, typically malaria. In North America the name most often refers to boneset (Eupatorium perfoliatum), a tall white-flowered herb of wet meadows whose bitter leaves were brewed into teas and infusions by both Native Americans and European settlers; it is also applied to the five-flowered gentian (Gentiana quinqueflora). The word pairs the illness name 'ague' with 'weed', reflecting the plant's supposed curative power over the disease. Today agueweed survives chiefly in herbals, historical accounts, and botanical literature rather than in modern medicine, having been displaced by effective antimalarial drugs. It remains an evocative example of how folk medicine named plants after the ailments they were believed to cure.
nounA common name for certain medicinal herbs — especially boneset (Eupatorium perfoliatum) and the five-flowered gentian (Gentiana quinqueflora) — formerly used in folk medicine to treat fevers and intermittent fever known as ague.
- Any of various herbs, especially boneset (Eupatorium perfoliatum), traditionally used as a remedy for ague and other fevers.
- Specifically, the five-flowered gentian (Gentiana quinqueflora), also called agueweed in North America.
"The settlers gathered agueweed from the marshy meadows, steeping its leaves into a bitter tea to break their fevers."
"Her grandmother's herbal still recommended agueweed tea for any fever that came and went in cycles."
"In the damp lowlands of Pennsylvania, agueweed grew thick along the creek banks where the mosquitoes bred."
Rarely pluralized except when referring collectively to different plants bearing the name.
"The botanist catalogued several agueweeds growing in the wetland preserve."
Before quinine was widely available, American settlers relied on a marsh plant called agueweed — better known as boneset — to sweat out the 'agues' that plagued colonial life.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of agueweed
The word agueweed is formed from 'ague', the historic English name for intermittent fever such as malaria, combined with 'weed' in its older sense of simply 'a plant'. Ague itself entered English from medieval Latin and Old French, ultimately deriving from the Latin 'acuta' (febris), meaning 'sharp' or 'acute' fever — the same root that gives us the adjective 'acute'. The compound arose in early modern English, when herbalists commonly labeled plants with the diseases they treated, producing names like feverfew and feverwort alongside agueweed.
How agueweed is actually used
A historical and botanical term rather than everyday vocabulary; encountered mainly in herbals, ethnobotany, and older medical writing. The name is applied to more than one unrelated plant, so context determines which species is meant.
Easily confused with agueweed
Ague is the feverish illness itself (malaria or similar intermittent fever), while agueweed is a plant name given to herbs believed to cure it.