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Definition of rush (Entry 1 of 5): any of various monocotyledonous often tufted marsh plants (as of the genera Juncus and Luzula of the family Juncaceae, the rush family) with cylindrical often hollow stems which are used in bottoming chairs and plaiting mats.

Hour
Rush family
Juncus effusus
Scientific classification
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Monocots
Clade:Commelinids
Order:Poales
Family:Juncaceae
Juss.[1]
Type genus
Juncus
Genera
  • Juncus - rush
  • Luzula - woodrush
Synonyms
  • Junceae

Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species[2] of slow-growing, rhizomatous, herbaceousmonocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is Juncus. Most of the Juncus species grow exclusively in wetland habitats. A few rushes, such as Juncus bufonius are annuals, but most are perennials.

Description[edit]

The leaves are evergreen and well-developed in a basal aggregation on an erect stem. They are alternate and tristichous (i.e., with three rows of leaves up the stem, each row of leaves arising one-third of the way around the stem from the previous leaf). Only in the genus Distichia are the leaves distichous. The rushes of the genus Juncus have flat, hairless leaves or cylindrical leaves. The leaves of the wood-rushes of the genus Luzula are always flat and bear long white hairs.

The plants are hermaphroditic or, rarely, dioecious. The small flowers are arranged in inflorescences of loose cymes, but also in rather dense heads or corymbs at the top of the stem or at its side. This family typically has reduced perianth segments called tepals. These are usually arranged in two whorls, each containing three thin, papery tepals. They are not bright or flashy in appearance, and their color can vary from greenish to whitish, brown, purple, black, or hyaline. Zen chess: mate in four download full. The three stigmas are in the center of the flowers. As is characteristic of monocots, all of the flower parts appear in multiples of three.

The fruit is usually a nonfleshy, three-sectioned dehiscentcapsule containing many seeds.

Uses[edit]

The dried pith of plants of this family were used to make a type of candle known as a rushlight.

The soft rush (Juncus effusus) is called igusa in Japanese and is used to weave the soft surface cover of tatami mats.

In medieval Europe, loose fresh rushes would be strewn on earthen floors in dwellings for cleanliness and insulation. Particularly favored for such a purpose was Acorus calamus (sweet flag), but despite its alternate vernacular name 'sweet rush', it is a plant from a different monocotorder, Acorales.[3]

The stems and leaves of Juncus kraussii were used by Indigenous Australians for fibre, for string, fishing lines, woven rugs and woven baskets. It is commonly used today for stabilisation of the banks of estuaries, around salt marshes and riparian zones next to sites developed for human use. It is also used in biofiltration systems and rain gardens.[4]

References[edit]

  1. ^Angiosperm Phylogeny Group (2009). 'An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III'. Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x.
  2. ^Christenhusz, M. J. M.; Byng, J. W. (2016). 'The number of known plants species in the world and its annual increase'. Phytotaxa. Magnolia Press. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  3. ^Burton, Alfred. Rush-bearing: An Account of the Old Custom of Strewing Rushes: Carrying Rushes to Church; The Rush-Cart; Garlands in Churches; Morris-Dancers; The Wakes; The Rush. Manchester: Brook & Chrystal, 1891; pp. 1-12
  4. ^'Juncus kraussii'. Botanic Gardens of South Australia. Retrieved 24 November 2020.

External links[edit]

Wikimedia Commons has media related to Juncaceae.
RUSH
  • 'Rush, the common name for species of juncus' . The American Cyclopædia. 1879.
  • 'Juncaceae' . Encyclopædia Britannica (11th ed.). 1911.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Juncaceae&oldid=992081268'

Care when you need it, where you need it.

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Hour
Rush family
Juncus effusus
Scientific classification
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Monocots
Clade:Commelinids
Order:Poales
Family:Juncaceae
Juss.[1]
Type genus
Juncus
Genera
  • Juncus - rush
  • Luzula - woodrush
Synonyms
  • Junceae

Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species[2] of slow-growing, rhizomatous, herbaceousmonocotyledonous plants that may superficially resemble grasses and sedges. They often grow on infertile soils in a wide range of moisture conditions. The best-known and largest genus is Juncus. Most of the Juncus species grow exclusively in wetland habitats. A few rushes, such as Juncus bufonius are annuals, but most are perennials.

Description[edit]

The leaves are evergreen and well-developed in a basal aggregation on an erect stem. They are alternate and tristichous (i.e., with three rows of leaves up the stem, each row of leaves arising one-third of the way around the stem from the previous leaf). Only in the genus Distichia are the leaves distichous. The rushes of the genus Juncus have flat, hairless leaves or cylindrical leaves. The leaves of the wood-rushes of the genus Luzula are always flat and bear long white hairs.

The plants are hermaphroditic or, rarely, dioecious. The small flowers are arranged in inflorescences of loose cymes, but also in rather dense heads or corymbs at the top of the stem or at its side. This family typically has reduced perianth segments called tepals. These are usually arranged in two whorls, each containing three thin, papery tepals. They are not bright or flashy in appearance, and their color can vary from greenish to whitish, brown, purple, black, or hyaline. Zen chess: mate in four download full. The three stigmas are in the center of the flowers. As is characteristic of monocots, all of the flower parts appear in multiples of three.

The fruit is usually a nonfleshy, three-sectioned dehiscentcapsule containing many seeds.

Uses[edit]

The dried pith of plants of this family were used to make a type of candle known as a rushlight.

The soft rush (Juncus effusus) is called igusa in Japanese and is used to weave the soft surface cover of tatami mats.

In medieval Europe, loose fresh rushes would be strewn on earthen floors in dwellings for cleanliness and insulation. Particularly favored for such a purpose was Acorus calamus (sweet flag), but despite its alternate vernacular name 'sweet rush', it is a plant from a different monocotorder, Acorales.[3]

The stems and leaves of Juncus kraussii were used by Indigenous Australians for fibre, for string, fishing lines, woven rugs and woven baskets. It is commonly used today for stabilisation of the banks of estuaries, around salt marshes and riparian zones next to sites developed for human use. It is also used in biofiltration systems and rain gardens.[4]

References[edit]

  1. ^Angiosperm Phylogeny Group (2009). 'An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III'. Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x.
  2. ^Christenhusz, M. J. M.; Byng, J. W. (2016). 'The number of known plants species in the world and its annual increase'. Phytotaxa. Magnolia Press. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
  3. ^Burton, Alfred. Rush-bearing: An Account of the Old Custom of Strewing Rushes: Carrying Rushes to Church; The Rush-Cart; Garlands in Churches; Morris-Dancers; The Wakes; The Rush. Manchester: Brook & Chrystal, 1891; pp. 1-12
  4. ^'Juncus kraussii'. Botanic Gardens of South Australia. Retrieved 24 November 2020.

External links[edit]

Wikimedia Commons has media related to Juncaceae.
  • 'Rush, the common name for species of juncus' . The American Cyclopædia. 1879.
  • 'Juncaceae' . Encyclopædia Britannica (11th ed.). 1911.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Juncaceae&oldid=992081268'

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