Equisetum pratense

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Meadow horsetail
Equisetum pratense.jpeg
Equisetum pratense
Status TNC G5.svg
Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Subclass: Equisetidae
Order: Equisetales
Family: Equisetaceae
Genus: Equisetum
Subgenus: E. subg. Equisetum
Species:
E. pratense
Binomial name
Equisetum pratense
Ehrh., 1784

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. The specific epithet pratense is Latin, meaning pasture or meadow dwelling.

Description

Fertile shoot with growing branches Meadow Horsetail II 2496723699.jpg
Fertile shoot with growing branches

Equisetum pratense has whitish-green and slender sterile stems that grow 15–52.5 cm (5.9–20.7 in) tall, with 8 to 20 ridges that bear three rows of flat spinules. The centrum is approximately one sixth of the diameter of the stem. The pale sheaths bear slender brown teeth with white margins. [1]

Strobili containing the sporangium with the spores mature in late spring. [2] [3] The cone like strobilus is only present in the spring shoot which grows to resemble the coneless summer shoot. [2]

Habitat

Equisetum pratense occurs in alluvial woods, thickets, mossy glades, and calcareous meadows. [1] It is a common pioneer species, commonly growing where instability or water erosion leaves an often open ground surface or where sandy alluvium accumulates beside streams. Where vegetation is more abundant, the fern occurs only as sparse and diminutive shoots, as the fern is succumbing to competition in a later seral community.

The plant is widespread, occurring from Iceland and northern Britain and Northern Ireland through northern and central Europe as far south as the Alps. It grows across most of northern Asia to Japan and through northern parts of North America from Alaska to Labrador. [4]

Toxicity

Equisetum pratense contains the enzyme thiaminase which destroys thiamine (vitamin B1). In sufficient quantity it is therefore toxic. [5]

Related Research Articles

<span class="mw-page-title-main">Fern</span> Class of vascular plants

The ferns are a group of vascular plants that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase.

<i>Equisetum</i> Genus of vascular plants in the family Equisetaceae

Equisetum is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds.

<i>Ophioglossum vulgatum</i> Species of fern in the family Ophioglossaceae

Ophioglossum vulgatum, commonly known as adder's-tongue, southern adder's-tongue or adder's-tongue fern, is a species of fern in the family Ophioglossaceae.

<i>Equisetum fluviatile</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum fluviatile, the water horsetail or swamp horsetail, is a vascular plant. It is a perennial herbaceous pteridophyte.

<span class="mw-page-title-main">Equisetidae</span> Subclass of ferns

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. They typically grow in wet areas, with whorls of needle-like branches radiating at regular intervals from a single vertical stem.

<i>Equisetum sylvaticum</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum sylvaticum, the wood horsetail, is a horsetail native to the Northern Hemisphere, occurring in North America and Eurasia. Because of its lacy appearance, it is considered among the most attractive of the horsetails.

<i>Erythronium albidum</i> Species of flowering plant

Erythronium albidum, the white fawnlily or white trout lily, is a small herbaceous geophyte in the lily family. It is also known as adder's tongue, whitedog's-tooth violet, serpent's tongue, trout lily, deer tongue, creeklily and yellow snowdrop. Large numbers of this plant indicate that the woodland has never been subjected to heavy machinery, where it would be unable to grow due to soil compaction.

<i>Equisetum giganteum</i> Species of vascular plant in the family Equisetaceae

Equisetum giganteum, with the common name southern giant horsetail, is a species of horsetail native to South America and Central America, from central Chile east to Brazil and north to southern Mexico.

<i>Equisetum arvense</i> Species of horsetail

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. It has separate sterile non-reproductive and fertile spore-bearing stems growing from a perennial underground rhizomatous stem system. The fertile stems are produced in early spring and are non-photosynthetic, while the green sterile stems start to grow after the fertile stems have wilted and persist through the summer until the first autumn frosts. It is sometimes confused with mare's tail, Hippuris vulgaris.

<span class="mw-page-title-main">Flora of Kakadu National Park</span>

This is a list of plants commonly found in Kakadu National Park, Northern Territory of Australia. Where known, common names are given in English and in Gun-djeihmi, a commonly spoken indigenous language in the area, are given in parentheses.

<i>Equisetum palustre</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum palustre, the marsh horsetail, is a perennial herbaceous pteridophyte belonging to the division of horsetails (Equisetopsida). It is widespread in cooler regions of North America and Eurasia.

<i>Equisetum telmateia</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum telmateia, the great horsetail or northern giant horsetail, is a species of Equisetum (puzzlegrass) with an unusual distribution, with one subspecies native to Europe, western Asia and northwest Africa, and a second subspecies native to western North America. The North American subspecies is often simply but ambiguously called "giant horsetail", but that name may just as well refer to the Latin American Equisetum giganteum and Equisetum myriochaetum.

<i>Equisetum hyemale</i> Species of horsetail plant

Equisetum hyemale is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae. It is a native plant throughout the Holarctic Kingdom, found in North America, Europe, and northern Asia.

<i>Selaginella selaginoides</i> Species of spore-bearing plant

Selaginella selaginoides is a non-flowering plant of the spikemoss genus Selaginella with a wide distribution around the Northern Hemisphere. It resembles a moss in appearance but is a vascular plant belonging to the division Lycopodiophyta. It has a number of common names including lesser clubmoss, club spikemoss, northern spikemoss, low spikemoss and prickly mountain-moss. This plant has one close relative, Selaginella deflexa, native to Hawaii. These two plants form a small clade that is sister to all other Selaginella species.

<i>Equisetum variegatum</i> Circumpolar species of horsetail plant

Equisetum variegatum, commonly known as variegated horsetail or variegated scouring rush, is a species of vascular plant in the horsetail family Equisetaceae. It is native to the Northern Hemisphere where it has a circumpolar distribution.

<i>Equisetum scirpoides</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum scirpoides Michx., Fl. Bor.-Amer. 2: 281 (1803). 2 n = 216.The smallest of the currently occurring representatives of the genus Equisetum (horsetail).

<i>Equisetum ramosissimum</i> Species of vascular plant in the horsetail family Equisetaceae

Equisetum ramosissimumDesf., known as branched horsetail, is a species of evergreen horsetail.

Equisetum dimorphum is an extinct horsetail species of the family Equisetaceae, and one of the oldest records of the genus Equisetum. It was found in rocks from the Lower Jurassic of Chubut, Argentina, among other plants as ferns, conifers and pteridosperms. Their remains consist of stems, leaves, strobili, and pagoda structures, which are preserved as impressions and casts. The combination of fine grained sediment, and the probable silica deposits in the epidermis of the plant, have managed to conserve not only its gross morphology, but also epidermal details not often present in this kind of preservation. This species was described in 2015 in Ameghiniana by a team led by Andres Elgorriaga, that included investigators of the Museum of Paleontology Egidio Feruglio, the Swedish Museum of Natural History, and the Buenos Aires University.

References

  1. 1 2 Merrit Lyndon Fernald (1970). R. C. Rollins (ed.). Gray's Manual of Botany (Eighth (Centennial) - Illustrated ed.). D. Van Nostrand Company. p. 4. ISBN   0-442-22250-5.
  2. 1 2 Piirainen, Mikko; Piirainen, Pirkko; Vainio, Hannele (1999). Kotimaan luonnonkasvit[Native wild plants] (in Finnish). Porvoo, Finland: WSOY. p. 24. ISBN   951-0-23001-4.
  3. "Equisetum pratense". eFloras. Retrieved 18 August 2018.
  4. C. N. Page (1997). The Ferns of Britain and Ireland (illustrated, revised ed.). Cambridge University Press. p. 461. ISBN   9780521586580.
  5. "Equisetum pratense" . Retrieved 2020-06-24.