genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of
monocotyledon
Monocotyledons (), commonly referred to as monocots, (Lilianae ''sensu'' Chase & Reveal) are grass and grass-like flowering plants (angiosperms), the seeds of which typically contain only one embryonic leaf, or cotyledon. They constitute one of ...
ous
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
s, commonly known as rushes. It is the largest genus in the family
Juncaceae
Juncaceae is a family of flowering plants, commonly known as the rush family. It consists of 8 genera and about 464 known species of slow-growing, rhizomatous, herbaceous monocotyledonous plants that may superficially resemble grasses and s ...
, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superficially resemble
grasses
Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns ...
or
sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' ...
s. They have historically received little attention from botanists; in his 1819 monograph,
James Ebenezer Bicheno
James Ebenezer Bicheno (25 January 1785 – 25 February 1851) was a British author and colonial official.
Bicheno was born in Newbury, Berkshire, the son of the Rev. James Bicheno, who was minister of the Baptist Church there. He was call ...
described the genus as "obscure and uninviting".
The form of the flower differentiates rushes from grasses or sedges. The flowers of ''Juncus'' comprise five
whorls
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane floral ...
of floral parts: three sepals, three petals (or, taken together, six tepals), two to six stamens (in two whorls) and a stigma with three lobes. The stems are round in cross-section, unlike those of
sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus '' Carex'' ...
s, which are typically somewhat triangular in cross-section.
In ''Juncus'' section ''Juncotypus'' (formerly called ''Juncus'' subg. ''Genuini''), which contains some of the most widespread and familiar species, the leaves are reduced to sheaths around the base of the stem and the bract subtending the inflorescence closely resembles a continuation of the stem, giving the appearance that the inflorescence is lateral.
Distribution and ecology
''Juncus'' has a cosmopolitan distribution, with species found throughout the world, with the exception of
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest cont ...
. They typically grow in cold or wet habitats, and in the tropics, are most common in
montane
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial ...
environments.
Fossil record
Several
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
fruits of a ''Juncus'' species have been described from middle Miocenestrata of the Fasterholt area near
Silkeborg
Silkeborg () is a Danish town with a population of 49,747 (1 January 2022).Jutland
Jutland ( da, Jylland ; german: Jütland ; ang, Ēota land ), known anciently as the Cimbric or Cimbrian Peninsula ( la, Cimbricus Chersonesus; da, den Kimbriske Halvø, links=no or ; german: Kimbrische Halbinsel, links=no), is a peninsula of ...
,
Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of Denmark
, establish ...
.Angiosperm Fruits and Seeds from the Middle Miocene of Jutland (Denmark) by
Else Marie Friis
Else Marie Friis (born 18 June 1947) is a Danish botanist and paleontologist. She is Professor Emerita in the Department of Geoscience at Aarhus University. Her work has been fundamental in the phylogenetic analysis of angiosperms, with widespr ...
, The Royal Danish Academy of Sciences and Letters 24:3, 1985
Classification
The genus ''Juncus'' was first named by
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his Nobility#Ennoblement, ennoblement in 1761 as Carl von Linné#Blunt, Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalise ...
in his 1753 '. The
type species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specime ...
of the genus was designated by
Frederick Vernon Coville
Frederick Vernon Coville (March 23, 1867 – January 9, 1937) was an American botanist who participated in the Death Valley Expedition (1890-1891), was honorary curator of the United States National Herbarium (1893-1937), worked at then was Chi ...
, who in 1913 chose the first species in Linnaeus' account, ''
Juncus acutus
''Juncus acutus'', the spiny rush, sharp rush or sharp-pointed rush, is a flowering plant in the monocot family Juncaceae found throughout the Americas, Northern and Southern Africa, Western and Southern Europe and West Asia.
It grows in salt m ...
''. ''Juncus'' can be divided into two major groups, one group with
cymose
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
inflorescence
An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...
s that include
bracteole
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or o ...
s, and one with
racemose
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...
inflorescences with no bracteoles.
The genus is divided into the following subgenera and sections:
* ''Juncus'' subg. ''Juncus''
** sect. ''Juncus''
** sect. ''Graminei'' (Engelm.) Engelm.
** sect. ''Caespitosi'' Cout.
** sect. ''Stygiopsis'' Kuntze
** sect. ''Ozophyllum'' Dumort.
** sect. ''Iridifolii'' Snogerup & Kirschner
* ''Juncus'' subg. ''Poiophylli'' Buchenau
** sect. ''Tenageia'' Dumort.
** sect. ''Steirochloa'' Griseb.
** sect. ''Juncotypus'' Dumort.
** sect. ''Forskalina'' Kuntze
Juncus acutus
''Juncus acutus'', the spiny rush, sharp rush or sharp-pointed rush, is a flowering plant in the monocot family Juncaceae found throughout the Americas, Northern and Southern Africa, Western and Southern Europe and West Asia.
It grows in salt m ...
'' L.
*''
Juncus aemulans
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus amabilis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus antarcticus
''Juncus antarcticus'', also known as dwarf rush, is a flowering plant species in the rush family Juncaceae, native to New Zealand and Australia.
Description
It is a dwarf perennial that forms cushions and has well-developed rhizomes and stol ...
Juncus aridicola
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
'' L.A.S.Johnson
*''
Juncus articulatus
''Juncus articulatus'' is a flowering plant species in the rush family Juncaceae. It is known by the common name jointleaf rush or jointed rush, which can also refer to '' J. kraussii'' from Australia. It is native to Eurasia, Canada, Greenland ...
'' L.
*''
Juncus astreptus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus bolanderi
''Juncus bolanderi'' is a species of rush known by the common name Bolander's rush. It is native to western North America from British Columbia to northern California, where it grows in many types of wet habitat, such as marshes, beaches, and me ...
Juncus caesariensis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus capensis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus compressus
''Juncus compressus'' is a species of flowering plant in the rush family, Juncaceae. It is native to temperate Eurasia.''Juncus compressus'' is easy to confuse with ''J. gerardii.''
Description
About 80 cm in height. Rhizomes are short-cr ...
Juncus crassistylus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus deosaicus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus dongchuanensis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus dregeanus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus effusus
''Juncus effusus'', with the common names common rush or soft rush, is a perennial herbaceous flowering plant species in the rush family Juncaceae. In North America, the common name soft rush also refers to '' Juncus interior''.
Distribution
' ...
Juncus elliottii
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfic ...
Juncus fimbristyloides
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus flavidus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus fominii
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus glaucoturgidus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus greenei
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus grisebachii
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus gubanovii
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus haenkei
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus harae
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus holoschoenus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus hydrophilus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
'' Noltie
*''
Juncus imbricatus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus jaxarticus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus khasiensis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfic ...
Juncus lancangensis
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus leiospermus
''Juncus leiospermus'' is an uncommon species of rush known by the common name Red Bluff dwarf rush. It is endemic to California, where it is known only from the Central Valley and adjacent Sierra Nevada foothills to the east.
Description
''J ...
Juncus leptospermus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus macrantherus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus maximowiczii
''Juncus maximowiczii'' is a species of plant in the genus ''Juncus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Descript ...
Juncus nevadensis
''Juncus nevadensis'' is a species of rush known by the common name Sierra rush. It is native to much of western North America from British Columbia to New Mexico, where it grows in wet areas in many habitat types. This is a rhizomatous perennia ...
Juncus nupela
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
'' Veldkamp
*''
Juncus obliquus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus occidentalis
''Juncus occidentalis'' is a species of rush known by the common name western rush. It is native to the western United States, where it grows in wet areas in many types of habitat. This is a bunching perennial herb with thin, stiff stems reachin ...
'' Wiegand
*''
Juncus ochraceus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus oxycarpus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus pallidus
''Juncus pallidus'', commonly known as the great soft-rush pale rush, giant rush, or leafless rush is a species of rush that is native to southern Australia, New Zealand, Norfolk Island, and Lord Howe Island. It is a vigorous, tufted, tussock ...
Juncus patens
''Juncus patens'' is a species of rush, known by the common names spreading rush and California grey rush.
It is native to the West Coast of the United States from Washington to California, and into Baja California, Mexico.
It grows at seeps, ...
'' E.Mey.
*''
Juncus pauciflorus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus phaeanthus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus pusillus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus revolutus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
'' R.Br.
*''
Juncus rigidus
''Juncus rigidus'' is a species of rush known by the common name sea rush. It is native to much of Africa and parts of western Asia. It is found inland and by the sea in sandy saline habitats.
Distribution and habitat
''Juncus rigidus'' is nat ...
'' Desf.
*''
Juncus roemerianus
''Juncus roemerianus'' is a species of flowering plant in the rush family known by the common names black rush, needlerush, and black needlerush. It is native to North America, where its main distribution lies along the coastline of the southeas ...
Juncus sarophorus
''Juncus sarophorus'', the broom rush or fan-flowered rush, is a species of flowering plant in the family Juncaceae. Native to southeastern Australia, and all of New Zealand except the Kermadec Islands, it also has been introduced to Great Britai ...
Juncus scabriusculus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus semisolidus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...
Juncus sphaerocarpus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
'' Nees
*''
Juncus spumosus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfic ...
'' Noltie
*''
Juncus squarrosus
''Juncus squarrosus'', called goose corn, heath rush, and mosquito rush, is a species of flowering plant in the genus ''Juncus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the ...
Juncus subglaucus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus subsecundus
''Juncus subsecundus '', the fingered rush, is a species of rush found in many parts of Australia
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the isl ...
Juncus subulitepalus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus tenageia
''Juncus tenageia'', called the sand rush, is a species of flowering plant in the genus ''Juncus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing ...
'' Ehrh. ex L.f.
*''
Juncus tenuis
''Juncus tenuis'', the slender rush, is a clump-forming, round-stemmed perennial in the Juncaceae (rush family). Slender rush grows to be between 15 and 60 cm tall. Generally considered a weed, it is rarely sold by retailers as a household ...
Juncus textilis
''Juncus textilis'' is a species of rush known by the common name basket rush. It is endemic to California, where it grows along the coast and in the coastal mountain ranges of the southern half of the state.
Description
''Juncus textilis'' is ...
Juncus torreyi
''Juncus torreyi'' is a species of rush known by the common name Torrey's rush. It is native to North America, where it is widespread. It can be found in many habitats across the southern half of Canada, coast to coast in the United States, and ...
'' Coville
*''
Juncus trachyphyllus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfic ...
Juncus triglumis
''Juncus triglumis'', called the three-flowered rush, is a species of flowering plant in the genus ''Juncus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, ...
Juncus turkestanicus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfici ...
Juncus valvatus
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plants that superfi ...
'' Link
*''
Juncus vaseyi
''Juncus'' is a genus of monocotyledonous flowering plants, commonly known as rushes. It is the largest genus in the family Juncaceae, containing around 300 species.
Description
Rushes of the genus ''Juncus'' are herbaceous plant, herbaceous pla ...