n.
Pronunciation: ' ho ̇ rs- ˌ t ā l
Function: noun
Date: 15th century
: any of a genus ( Equisetum of the order Equisetales) of lower tracheophytes comprising perennial plants that spread by creeping rhizomes and have leaves reduced to nodal sheaths on the hollow jointed ribbed shoots
horsetail: 1 vegetative plant, 2 fertile plant