equisetum(redirected from equisetums)
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n. pl. eq·ui·se·tums or eq·ui·se·ta (-tə)
n, pl -tums or -ta (-tə)
(Plants) any tracheophyte plant of the genus Equisetum, which comprises the horsetails
[C19: New Latin, changed from Latin equisaetum, from equus horse + saeta bristle]
a nonflowering plant of the genus Equisetum, family Equisetaceae, with hollow jointed stems bearing scaly leaves and a spikelike cone bearing spores.
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|Noun||1.||Equisetum - horsetails; coextensive with the family Equisetaceae|
fern genus - genera of ferns and fern allies
Equisetaceae, family Equisetaceae, horsetail family - sole surviving family of the Equisetales: fern allies
horsetail - 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