1. Evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils
   - scouring rush, rough horsetail, Equisetum hyemale, Equisetum robustum

Type of: horsetail

• coordinate clause
• coordinate geometry
• coordinate system
• coordinated
• coordinated universal time
• coordinately
• coordinating
• coordinating conjunction
• coordination
• coordination compound
• coordinative
• coordinator
• Coosa
• Coosa River
• coot
• cooter
• cootie
• cop
• cop shop
• cop-out
• copacetic
• copaiba
• copaiba balsam
• copal
• copaline