Juncus validus

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Classification System: APG IV

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

Familia: Juncaceae
Genus: Juncus
Species: Juncus validus
Name

Juncus validus Coville, 1895
Synonyms

Juncus crassifolius Buchenau, Bot. Jahrb. Syst. 12: 326 (1890)
Juncus platycephalus Michx.
Juncus scirpoides subvar. major Engelm., Trans. Acad. Sci. St. Louis 2: 468 (1866)

Distribution
Native distribution areas:

Continental: Northern America
'Regional: USA
USA (Alabama, Arkansas, Florida, Georgia, Kansas, Kentucky, Louisiana, Maryland, Missouri, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia)

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

Coville, F.V., 1895. Bulletin of the Torrey Botanical Club. New York 22: 305

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 validus in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2022 Mar 09. Reference page.
Hassler, M. 2022. Juncus validus. 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 09. Reference page.
Tropicos.org 2022. Juncus validus. Missouri Botanical Garden. Published online. Accessed: 09 Mar 2022.
International Plant Names Index. 2022. Juncus validus. Published online. Accessed: Mar 09 2022.
USDA, ARS, Germplasm Resources Information Network. Juncus validus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.
Juncus validus – Taxon details on Integrated Taxonomic Information System (ITIS).

Vernacular names
English: Roundhead rush

Juncus validus, the roundhead rush, is a species of flowering plant in the family Juncaceae, native to the central and southeastern United States.[1][2] It is a somewhat weedy species, found along wet roadsides and in ditches.[3]
References

"Juncus validus Coville". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 3 July 2021.
"Juncus validus Coville roundhead rush". USDA Plants Database. United States Department of Agriculture, Natural Resources Conservation Service. Retrieved 3 July 2021.
Knapp, Wesley Martin (2014). "Juncus fascinatus (Juncaceae), a new combination in Juncus sect. Ozophyllum and notes on morphologically similar species". Phytotaxa. 174 (5): 243.