Noun: Equisetum hyemale
- Evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils
"Pioneers used Equisetum hyemale to clean their pots";
- scouring rush, rough horsetail, Equisetum hyemale robustum, Equisetum robustum
Type of: horsetail
Encyclopedia: Equisetum hyemale