Dictionary.com
Thesaurus.com

horsetail

American  
[hawrs-teyl] / ˈhɔrsˌteɪl /

noun

  1. Also called scouring rush.  any nonflowering plant of the genus Equisetum, having hollow, jointed stems.

  2. a horse's tail formerly used as a Turkish military standard or as an ensign of a pasha, the number of tails increasing with the rank.


horsetail British  
/ ˈhɔːsˌteɪl /

noun

  1. any tracheophyte plant of the genus Equisetum , having jointed stems with whorls of small dark toothlike leaves and producing spores within conelike structures at the tips of the stems: phylum Sphenophyta

  2. a stylized horse's tail formerly used as the emblem of a pasha, the number of tails increasing with rank

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

horsetail Scientific  
/ hôrstāl′ /
  1. A member of a genus, Equisetum, of seedless vascular plants having a jointed hollow stem and narrow, sometimes much reduced leaves. Plants extremely similar to modern horsetails are known from fossils 300 million years old. The horsetails are the last surviving members of the phylum Sphenophyta, which dominated the forests of the Devonian and Carboniferous periods.


Etymology

Origin of horsetail

First recorded in 1350–1400, horsetail is from Middle English horse tayle. See horse, tail 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He, too, was dressed in black, and his hair was as dark as the quartet of horsetails that were now impatiently whipping about.

From Literature

This research expands UNM's contributions to the geosciences and highlights horsetails, some of the planet's oldest surviving plants, as unexpected yet powerful record keepers of Earth's climate history.

From Science Daily

The animal belongs to a herd of hefty herbivores who spend their days lumbering through an open landscape of conifers and gingkos, horsetails and monkey puzzle trees.

From Los Angeles Times

Fire is bad for all animals, but the first plants that come back, benefiting from openings in the tree canopy, are really good food for bears: huckleberry, cow parsnip and horsetail, to name a few.

From Seattle Times

The following spring, the horsetail came back stronger than ever.

From Seattle Times