A nonflowering plant with a hollow jointed stem that bears whorls of narrow leaves, producing spores in cones at the tips of the shoots.
- ‘During the Carboniferous the climate was hot and humid, and there were extensive swampy forests dominated by giant tree ferns and conifers, club mosses, and horsetails.’
- ‘Equisetum are known as horsetails, foxtails, or scouring rushes - this last name is derived from the fact that Equisetum stores granules of silica within its cells, making it an effective tool for scrubbing pots and polishing wood.’
- ‘Seed-producing plants are probably the most familiar plants to most people, unlike mosses, liverworts, horsetails, and most other seedless plants which are overlooked because of their size or inconspicuous appearance.’
- ‘The only lineage that has survived is the horsetails, which are herbaceous and share characters with their extinct progenitors such as articulate stems with microphylls arranged in whorls.’
- ‘By the end of the Devonian, ferns, horsetails and seed plants had also appeared, producing the first trees and the first forests.’
We take a look at several popular, though confusing, punctuation marks.