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  2. Equisetum - Wikipedia

    en.wikipedia.org/wiki/Equisetum

    Equisetum (/ ˌ ɛ k w ɪ ˈ s iː t əm /; horsetail) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds. [2]Equisetum is a "living fossil", the only living genus of the entire subclass Equisetidae, which for over 100 million years was much more diverse and dominated the understorey of late Paleozoic forests.

  3. Equisetum arvense - Wikipedia

    en.wikipedia.org/wiki/Equisetum_arvense

    Equisetum arvense, the field horsetail or common horsetail, is an herbaceous perennial plant in the Equisetidae (horsetails) sub-class, native throughout the arctic and temperate regions of the Northern Hemisphere.

  4. Equisetum hyemale - Wikipedia

    en.wikipedia.org/wiki/Equisetum_hyemale

    Equisetum hyemale (rough horsetail [2]) is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae native to Eurasia and Greenland. It was formerly widely treated in a broader sense including a subspecies (subsp. affine ) in North America, but this is now treated as a separate species, Equisetum praealtum .

  5. Equisetaceae - Wikipedia

    en.wikipedia.org/wiki/Equisetaceae

    Equisetites is a "wastebin taxon" uniting all sorts of large horsetails from the Mesozoic; it is almost certainly paraphyletic and would probably warrant being subsumed in Equisetum. But while some of the species placed there are likely to be ancestral to the modern horsetails, there have been reports of secondary growth in other Equisetites ...

  6. Equisetidae - Wikipedia

    en.wikipedia.org/wiki/Equisetidae

    Equisetidae is one of the four subclasses of Polypodiopsida (ferns), a group of vascular plants with a fossil record going back to the Devonian. They are commonly known as horsetails . [ 2 ] They typically grow in wet areas, with whorls of needle-like branches radiating at regular intervals from a single vertical stem.

  7. Equisetum × schaffneri - Wikipedia

    en.wikipedia.org/wiki/Equisetum_×_schaffneri

    Equisetum × schaffneri is a horsetail (family Equisetaceae) which is believed to be an ancient, naturally occurring, widely distributed hybrid between Equisetum giganteum and Equisetum myriochaetum, all from the Neotropics. At each node there are as many as nineteen branchlets, each curving downward and then upward, and up to 18 inches (45 cm ...

  8. Fern ally - Wikipedia

    en.wikipedia.org/wiki/Fern_ally

    A clubmoss, from the Lycopodiopsida Isoëtes lacustris, a quillwort, from the Isoetopsida Equisetum fluviatile, from the Equisetopsida (horsetails) Psilotum nudum, from the Psilotopsida (whisk ferns) Fern allies are a diverse group of seedless vascular plants that are not true ferns.

  9. Equisetum pratense - Wikipedia

    en.wikipedia.org/wiki/Equisetum_pratense

    Equisetum pratense, commonly known as meadow horsetail, shade horsetail or shady horsetail, is a widespread horsetail (Equisetophyta) and it is a pteridophyte.Shade horsetail can be commonly found in forests with tall trees or very thick foliage that can provide shade and tends to grow closer and thicker around streams, ponds and rivers.