Juncus planifolius

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Juncaceae
Genus: Juncus
Species: Juncus planifolius
Name

Juncus planifolius R.Br.
Synonyms

Juncus demissus Steud., Cyp. Pl. Cyp. 303 (1855)
Juncus homalophyllus Steud., Syn. Pl. Cyp. 303 (1855)
Juncus planifolius var. chathamensis Buchenau, Krit. Verz. Juncac.: 87 (1879)
Juncus planifolius var. humilis Ostenf., Biol. Meddel. Kongel. Danske Vidensk. Selsk. 3(2): 15 (1921)
Juncus planifolius var. tenellus Benth., Fl. Austral. 7: 126 (1878)
Juncus xantholepis Steud., Syn. Pl. Cyp. 303 (1855)

Distribution
Native distribution areas:

Continental: Australasia
'Regional: Australia
Australia (South Australia, Queensland, New South Wales, Victoria, Tasmania)
'Regional: New Zealand
New Zealand (incl. Stewart Isl.); Chatham Isl.
'Introduced into:
Hawaii, Oregon

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Brown, R. 1810. Prodromus Florae Novae Hollandiae et Insulae Van Diemen. pp. i–viii + 145–590, Londini: R.Taylor. BHL Reference page. : 1: 259.

Additional references

Kirschner, J. & al. (2002). Juncaceae Species Plantarum: Flora of the World 6-8: 1-237, 1-336,1-192. Australian Biological Resources Study, Canberra.

Links

Govaerts, R. et al. 2022. Juncus planifolius in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2022 Mar 07. Reference page.
Hassler, M. 2022. Juncus planifolius. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2022. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2022 Mar 07. Reference page.
Tropicos.org 2022. Juncus planifolius. Missouri Botanical Garden. Published online. Accessed: 07 Mar 2022.
International Plant Names Index. 2022. Juncus planifolius. Published online. Accessed: Mar 07 2022.

Vernacular names
English: Broadleaf rush

Juncus planifolius is a species of rush, commonly known as broadleaf rush,[1] broad-leaved rush,[2] or grass-leaved rush. It naturally occurs in Australia, New Zealand, Hawaii and South America.

In New Zealand J. planifolius is found in open, wet ground, and can be typically found on exposed clay, beside tracks or drains.[3]

Recently J. planifolius has been introduced to the northern hemisphere. It was found in Hawai'i in 1930 and has spread to most of the islands.[4] The species arrived in Ireland by 1973.[5] It is now well established on Pacific coast of North America, where the plant was first collected in Oregon in 1980.[6] The first California record was in 2008,[7] but populations were probably well established before then. Juncus planifolius may have arrived as a contaminant in vines planted in commercial cranberry bogs, but is now spreading in native coastal bogs, where it may displace native plants.

In North America, it is recognized by its unbranched stems, basal leaves with no sharp demarcation of sheath and blade, and blackish tepals.
References

USDA, NRCS (n.d.). "Juncus planifolius". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 22 January 2016.
BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
"Juncus planifolius". New Zealand Plant Conservation Network. Retrieved 16 November 2021.
Wester L, 1992. Origin and distribution of adventives alien flowering plants in Hawai'i. In: Alien plant invasions in native ecosystems of Hawaii: Management and research [ed. by Stone, C. P. \Smith, C. W. \Tunison, J. T.]. Honolulu, Hawaii, USA: University of Hawaii Cooperative National Park Resources Studies Unit, 99-154 pp.
Scannell, Mary J. P. 1973. Juncus planifolius R. Br. in Ireland. The Irish Naturalists’ Journal 17(9): 308-309.
Balslev Henrik, 1980. Juncus planifolius (Juncaceae) in North America. Brittonia, 32(1):51-54.
Zika PF, 2009. Noteworthy Collections. California. Madrono, 56:130.