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Dwarf Rush

Juncus capitatus Weigel

Description

provided by eFloras
Herbs, annual, cespitose, 0.3--1 dm. Culms to 20. Leaves basal; auricles absent; blade 0.5--2.5 cm  ã 0.5 mm. Inflorescences: glomerules 1--2, each with 2--10(--14) flowers; bracts subtending inflorescence 1(--2), foliose, clearly surpassing inflorescence. Flowers: tepals 6, tan to brownish, subulate, lanceolate-ovate, 3.5--4.5(--5) mm, 2 times length of inner tepals, margins scarious; inner series delicate, shorter, apex acute; stamens 3, filaments 1 mm, anthers 0.5 mm; style 0.4--0.7 mm. Capsules tan to reddish brown, 3-locular, globose to obovoid, 1.2--1.7 mm, shorter than tepals. Seeds ellipsoid-ovoid, 0.3--0.4 mm. 2n = 18.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Distribution

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introduced; Calif., La., Okla., Tex.; native, Africa (north); Europe, Asia (Near East).
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Flowering/Fruiting

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Flowering and fruiting spring.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Habitat

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Moist to wet areas, usually in sandy, often disturbed soil such as roadsides or along trails; below 1000m.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Juncus capitatus

provided by wikipedia EN

Juncus capitatus is a species of rush known by the common names dwarf rush[2] and leafybract dwarf rush.[3] It is native to Europe, Asia and North Africa. It is also an introduced species in parts of North America such as California and the Gulf Coast. It grows in moist areas, such as wet sand, vernal pools, and ditches.

Description

The dwarf rush is a small annual herb not exceeding ten centimeters in height. The stems are erect and thready, flat or somewhat corrugated. The leaves are basal and up to 3 or 4 centimeters long. The plant is green to red or brownish in color. Each stem bears an inflorescence of up to six clustered flowers. The pointed bracts at the base of the inflorescence are often over a centimeter long, longer the flower cluster itself, and are somewhat leaflike, giving the species its common name. Each flower has pointed outer tepals and thinner, shorter, oval-shaped inner tepals. There are three stamens. The fruit is a tiny oval-shaped capsule one to two millimeters long.[4]

Distribution and habitat

The dwarf rush is native to Europe, West Asia and North and East Africa.[5] In the British Isles it is only known from Anglesey, Cornwall and the Channel Islands, and is rare in all these locations.[4] It germinates in autumn and grows in places where water stands in winter and which dry up completely in summer, meaning the plant faces little competition. These locations include rock ledges on sea cliffs, around outcrops of serpentine rock and in dune slacks. In some locations it has sometimes been thought to be locally extinct, but then reappeared later.[6]

References

  1. ^ from Deutschlands Flora in Abbildungen. Author: Johann Georg Sturm. Painter: Jacob Sturm.
  2. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 26 June 2015. Retrieved 17 October 2014.
  3. ^ USDA, NRCS (n.d.). "Juncus capitatus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 January 2016.
  4. ^ a b McClintock, David; Fitter, R.S.R. (1961). The Pocket Guide to Wild Flowers. London: Collins. p. 211.
  5. ^ "J. capitatus Weigel" (PDF). Flora Iberica. Retrieved 18 March 2022.
  6. ^ "Juncus capitatus". Online Atlas of the British and Irish Flora. Archived from the original on 27 August 2021. Retrieved 16 April 2020.

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Juncus capitatus: Brief Summary

provided by wikipedia EN

Juncus capitatus is a species of rush known by the common names dwarf rush and leafybract dwarf rush. It is native to Europe, Asia and North Africa. It is also an introduced species in parts of North America such as California and the Gulf Coast. It grows in moist areas, such as wet sand, vernal pools, and ditches.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN