Juncus

A genus of plants in the rush family Juncaceae. Perennial herbaceous plants found in marshes, swamps and other poorly drained sites. Contain cyanogenetic glycosides and rarely cause poisoning. Includes J. effusus, J. inflexus (blue or hard rush), J. glaucus (J. inflexus), J. holoschoenus, J. pauciflorus, J. prismatocarpus.

The noun has one meaning:

Meaning #1: type genus of the Juncaceae; perennial tufted glabrous marsh plants of temperate regions: rushes
  Synonym: genus Juncus

Juncus
Juncus hostii from Thomé, Flora von Deutschland, Österreich und der Schweiz 1885
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
(unranked):	Commelinids
Order:	Poales
Family:	Juncaceae
Genus:	Juncus L.
Species
See text.

Juncus is a genus in the plant family Juncaceae. It consists of 225^[1] to 300^[2] species of grassy plants commonly called rushes. They occur in all wet regions of the world, but rarely in the tropics. Many are considered weeds in gardening, and few are used as ornamental plants.

Juncus species are used as food plants by the larvae of a number of Lepidoptera species - see list of Lepidoptera that feed on Juncus.

Species include^[3]

Juncus abortivus Chapman - annual rush Juncus acuminatus Michx. - tapertip rush, tufted rush, sharp-fruited rush Juncus acutus L. - sharp rush, spiny rush Juncus acutiflorus Ehrh. ex Hoffm. - sharp-flowered rush Juncus albescens (Lange) Fernald - northern white rush Juncus alpinoarticulatus Chaix - northern green rush, alpine rush Juncus ambiguus Guss. - frog rush, seasice rush, doubtful toad-rush Juncus anthelatus (Wiegand) R.E.Brooks - greater poverty rush Juncus arcticus Willd. - arctic rush, baltic rush, wire rush Juncus articulatus L. - jointed rush Juncus balticus Willd. - baltic rush Juncus biflorus Ell. - bog rush Juncus biglumis L. - twoflowered rush Juncus bolanderi Engelm. - Bolander's rush Juncus brachycarpus Engelm. - whiteroot rush Juncus brachycephalus (Engelm.) Buch. - small-headed rush Juncus brachyphyllus Wieg. - tuftedstem rush Juncus brevicaudatus (Engelm.) Fern. - narrow-panicle rush, short-tailed rush Juncus breweri Engelm. - Brewer's rush Juncus bryoides F.J. Herm. - moss rush Juncus bufonius L. - toad rush Juncus bulbosus L. - bulbous rush Juncus caesariensis Coville - New Jersey rush Juncus canadensis J. Gay ex Laharpe - Canadian rush Juncus capillaris F.J. Herm. - hairystem dwarf rush Juncus capitatus Weigel - leafybract dwarf rush Juncus castaneus Sm. - chestnut rush Juncus chlorocephalus Engelm. - greenhead rush Juncus compressus Jacq. - round-fruited rush Juncus confusus Coville - Colorado rush Juncus conglomeratus L. - compact rush Juncus cooperi Engelm. - Cooper's rush Juncus coriaceus Mackenzie - leathery rush Juncus covillei Piper - Coville's rush Juncus cyperoides Laharpe - Forbestown rush Juncus debilis Gray - weak rush Juncus dichotomus Ell. - forked rush Juncus diffusissimus Buckl. - slimpod rush Juncus drummondii E. Mey. - Drummond's rush Juncus dubius Engelm. - dubious rush, questionable rush Juncus dudleyi Wieg. - Dudley's rush Juncus duranii Ewan - Duran's rush Juncus effusus L. - common rush, soft rush Juncus elliottii Chapman - Elliott's rush Juncus ensifolius Wikstr. - swordleaf rush Juncus falcatus E. Mey. - falcate rush Juncus filiformis L. - thread rush Juncus filipendulus Buckl. - ringseed rush Juncus georgianus Coville - Georgia rush Juncus gerardii Loisel. - saltmarsh rush Juncus glomeratus Batson - clustered rush Juncus greenei Oakes & Tuckerman - Greene's rush Juncus gymnocarpus Coville - Pennsylvania rush Juncus haenkei E. Mey. - Haenke's rush Juncus hallii Engelm. - Hall's rush Juncus hemiendytus F.J. Herm. - Herman's dwarf rush Juncus howellii F.J. Herm. - Howell's rush Juncus inflexus L. - hard rush, European meadow rush

Juncus interior Wieg. - inland rush Juncus kelloggii Engelm. - Kellogg's dwarf rush Juncus kraussii Juncus leiospermus F.J. Herm. - Red Bluff dwarf rush Juncus lesueurii Boland. - salt rush Juncus longii Fern. - Long's rush Juncus longistylis Torr. - longstyle rush Juncus luciensis Ertter - Santa Lucia dwarf rush Juncus macrandrus Coville - longanther rush Juncus macrophyllus Coville - longleaf rush Juncus marginatus Rostk. - grassleaf rush Juncus maritimus Lam. - sea rush Juncus megacephalus M.A. Curtis - bighead rush Juncus mertensianus Bong. - Mertens' rush Juncus mexicanus Willd. - Mexican rush Juncus militaris Bigelow - bayonet rush Juncus nevadensis S. Wats. - Sierra rush Juncus nodatus Coville - stout rush Juncus nodosus L. - knotted rush Juncus occidentalis Wieg. - western rush Juncus orthophyllus Coville - straightleaf rush Juncus oxymeris Engelm. - pointed rush Juncus parryi Engelm. - Parry's rush Juncus patens E. Mey. - spreading rush Juncus pelocarpus E. Mey. - brownfruit rush, mud rush Juncus phaeocephalus Engelm. - brownhead rush Juncus planifolius R. Br. - broadleaf rush Juncus polyanthemos Buch. - manyflower rush Juncus polycephalus Michx. - manyhead rush Juncus pylaei Laharpe -Pylaeie's rush Juncus regelii Buch. - Regel's rush Juncus repens Michx. - lesser creeping rush Juncus roemerianus Scheele - needlegrass rush Juncus rugulosus Engelm. - wrinkled rush Juncus saximontanus A. Nels. - Rocky Mountain rush Juncus scirpoides Lam. - needlepod rush Juncus secundus Beauv. ex Poir. - lopsided rush Juncus squarrosus L. - heath rush, mosquito rush Juncus stygius L. - moor rush Juncus subcaudatus (Engelm.) Coville & Blake - woodland rush Juncus subnodulosus Schrank - blunt-flowered rush Juncus subtilis E. Mey. - greater creeping Juncus supiniformis Engelm. - hairyleaf rush Juncus tenuis Willd. - slender rush, path rush Juncus texanus (Engelm.) Coville - Texas rush Juncus textilis Buch. - basket rush Juncus tiehmii Ertter - Nevada rush Juncus torreyi Coville - Torrey's rush Juncus tracyi Rydb. - Tracy's rush Juncus trifidus L. - highland rush Juncus triformis Engelm. - Yosemite dwarf rush Juncus triglumis L. - three-hulled rush Juncus trigonocarpus Steud. - redpod rush Juncus tweedyi Rydb. - Tweedy's rush Juncus uncialis Greene - twelfth rush Juncus validus Coville - roundhead rush Juncus vaseyi Engelm. - Vasey's rush Juncus xiphioides E. Mey. - irisleaf rush

Blunt-flowered Rush (Juncus subnodulosus)

Jointed Rush (Juncus articulatus) - from Thomé, Flora von Deutschland, Österreich und der Schweiz 1885

References

Wikisource has original text related to this article: A determination of three British species of Juncus, with jointed leaves

1. ^ Jepson Manual Treatment
2. ^ Flora of North America Genus Profile
3. ^ USDA Plants Profile: North American Species

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