1. (noun) perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in northern hemisphere; some in Africa and South America

• common horsetail
• equisetum arvense
• field horsetail
• equisetum fluviatile
• swamp horsetail
• water horsetail
• equisetum hyemale
• equisetum hyemale robustum
• equisetum robustum
• rough horsetail
• scouring rush
• equisetum palustre
• marsh horsetail
• equisetum sylvaticum
• wood horsetail
• equisetum variegatum
• variegated horsetail
• variegated scouring rush

1. (noun) perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in northern hemisphere; some in Africa and South America

• equisetum
• genus equisetum

1. (noun) perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in northern hemisphere; some in Africa and South America

• fern ally