genus Equisetum

Thesaurus

Noun

1.

genus Equisetum - horsetails; coextensive with the family EquisetaceaeEquisetumfern genus - genera of ferns and fern alliesEquisetaceae, family Equisetaceae, horsetail family - sole surviving family of the Equisetales: fern allieshorsetail - 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