Taxon: Juncus filiformis L.

Summary

Genus:

Juncus

Family:

Juncaceae

Nomen number:

401982

Place of publication:

Sp. pl. 1:326. 1753

Typification:

View in Linnean Typification Project

Verified:

09/21/2000 ARS Systematic Botanists.

Accessions:

4 (3 active, 1 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

No images

Conservation Status

Reference(s)

Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Crow, G. E. & C. B. Hellquist. 2000. Aquatic and wetland plants of northeastern North America, 2 vols.
Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
FNA Editorial Committee. 1993-. Flora of North America.
Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
Hitchcock, C. L. et al. 1955-1969. Vascular plants of the Pacific Northwest.
Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
Komarov, V. L. et al., eds. 1934-1964. Flora SSSR.
Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Ownbey, G. B. & T. Morley. 1991. Vascular plants of Minnesota: a checklist and atlas
Scoggan, H. J. 1978-1979. The flora of Canada, 4 vol.
Sell, P. & G. Murrell. 1996-. Flora of Great Britain and Ireland.
Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:322-323.
Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
Voss, E. 1972-. Michigan flora.
Wetter, M. A. et al. WISFLORA: Wisconsin vascular plant species (on-line resource).
Wherry, E. T. et al. 1979. Atlas of the flora of Pennsylvania.
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).

Common names

Language	Name	Alternate name	note	seq	Citation
English	thread rush			1	FNA Editorial Committee. 1993-. Flora of North America.
Swedish	trådtåg			2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Asia-Temperate	Caucasus	Armenia			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Asia-Temperate	Caucasus	Azerbaijan			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Asia-Temperate	Caucasus	Georgia			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Asia-Temperate	Caucasus	Russian Federation	Dagestan		Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Asia-Temperate	Caucasus	Russian Federation-Ciscaucasia	Ciscaucasia		Komarov, V. L. et al., eds. 1934-1964. Flora SSSR.
1	Native	Asia-Temperate	China	China	Heilongjiang Sheng		Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
1	Native	Asia-Temperate	China	China	Jilin Sheng		Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
1	Native	Asia-Temperate	China	China	Liaoning Sheng		Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
1	Native	Asia-Temperate	China	China	Xinjiang Uygur Zizhiqu		Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
1	Native	Asia-Temperate	Eastern Asia	Japan	Hokkaidô		Ohwi, J. 1965. Flora of Japan (Engl. ed.).
1	Native	Asia-Temperate	Eastern Asia	Japan	Honshu		Ohwi, J. 1965. Flora of Japan (Engl. ed.).
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Amur		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Habarovskij kraj		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Kamčatskij kraj		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Kurile Islands		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Magadanskaja oblast'		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Primorye		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Russian Far East	Russian Federation	Sakhalin		Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
1	Native	Asia-Temperate	Siberia	Russian Federation	Altay		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Buryatia		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Chita		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Gorno-Altay		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Irkutsk		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Krasnoyarsk		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Novosibirsk		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Tomsk		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Tyumen		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Tyva, Respublika		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Siberia	Russian Federation	Yakutia-Sakha		Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
1	Native	Asia-Temperate	Western Asia	Turkey		n.e.	Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
1	Native	Europe	Eastern Europe	Belarus			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Eastern Europe	Estonia			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Eastern Europe	Latvia			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Eastern Europe	Lithuania			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Eastern Europe	Russian Federation	Saratov		Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:322-323.
1	Native	Europe	Eastern Europe	Russian Federation-European part	European part		Komarov, V. L. et al., eds. 1934-1964. Flora SSSR.
1	Native	Europe	Eastern Europe	Ukraine			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Middle Europe	Austria			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Middle Europe	Belgium			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Middle Europe	Czech Republic			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Middle Europe	Germany			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Middle Europe	Netherlands			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Middle Europe	Poland			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Middle Europe	Slovakia			Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
1	Native	Europe	Northern Europe	Denmark			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Northern Europe	Finland			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Northern Europe	Iceland			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Northern Europe	Norway			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Northern Europe	United Kingdom			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Southeastern Europe	Bulgaria			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Southeastern Europe	Italy		incl. Sicily	Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Southeastern Europe	Romania			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Southwestern Europe	France			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Europe	Southwestern Europe	Spain			Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
1	Native	Northern America	Eastern Canada	Canada	New Brunswick		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Newfoundland and Labrador		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Nova Scotia		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Ontario		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Prince Edward Island		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Eastern Canada	Canada	Québec		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Minnesota		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	North-Central U.S.A.	United States	Wisconsin		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Maine		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New Hampshire		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	New York		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Idaho		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Montana		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Oregon		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Washington		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Northwestern U.S.A.	United States	Wyoming		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Southwestern U.S.A.	United States	Utah		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Subarctic America	Canada	Northwest Territories		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Subarctic America	Canada	Yukon		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Subarctic America	Greenland		s.	FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Subarctic America	United States	Alaska		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	Alberta		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	British Columbia		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	Manitoba		FNA Editorial Committee. 1993-. Flora of North America.
1	Native	Northern America	Western Canada	Canada	Saskatchewan		FNA Editorial Committee. 1993-. Flora of North America.

Native
Asia-Temperate

WESTERN ASIA: Turkey (n.e.)
CAUCASUS: Russian Federation-Ciscaucasia [Ciscaucasia], Armenia, Azerbaijan, Georgia, Russian Federation [Dagestan]
SIBERIA: Russian Federation [Altay, Buryatia, Chita, Gorno-Altay, Irkutsk, Krasnoyarsk, Novosibirsk, Tomsk, Tyumen, Tyva, Respublika, Yakutia-Sakha]
RUSSIAN FAR EAST: Russian Federation [Kurile Islands, Habarovskij kraj, Primorye, Amur, Kamčatskij kraj, Magadanskaja oblast', Sakhalin]
CHINA: China [Heilongjiang Sheng, Jilin Sheng, Liaoning Sheng, Xinjiang Uygur Zizhiqu]
EASTERN ASIA: Japan [Hokkaidô, Honshu]

Europe

NORTHERN EUROPE: Denmark, Finland, United Kingdom, Iceland, Norway
MIDDLE EUROPE: Austria, Belgium, Czech Republic, Germany, Netherlands, Poland, Slovakia
EASTERN EUROPE: Russian Federation-European part [European part], Belarus, Estonia, Lithuania, Latvia, Russian Federation [Saratov], Ukraine
SOUTHEASTERN EUROPE: Bulgaria, Italy (incl. Sicily), Romania
SOUTHWESTERN EUROPE: Spain, France

Northern America

SUBARCTIC AMERICA: Canada [Northwest Territories, Yukon], Greenland (s.), United States [Alaska]
EASTERN CANADA: Canada [New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, Québec]
WESTERN CANADA: Canada [Alberta, British Columbia, Manitoba, Saskatchewan]
NORTHEASTERN U.S.A.: United States [Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Minnesota, Nebraska, Wisconsin]
NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington, Wyoming]
SOUTHWESTERN U.S.A.: United States [Utah]

Reference(s)

Davis, P. H., ed. 1965-1988. Flora of Turkey and the east Aegean islands.
FNA Editorial Committee. 1993-. Flora of North America.
Kharkevich, S. S., ed. 1985. Vascular plants of the Russian Far East. Note: also cited as "Vascular plants of the Soviet Far East", and "Sosud. Rast. Sovet. Dal'nego Vostoka"
Kirschner, J. 2002. Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A. E., ed., Species Plantarum: Flora of the World. 8:107-109.
Komarov, V. L. et al., eds. 1934-1964. Flora SSSR.
Krasnoborov, I. M., ed. 2000-. Flora of Siberia (English translation)
Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Skvortsov, A. K., ed. 2006. Flora of the Lower Volga region 1:322-323.
Tutin, T. G. et al., eds. 1964-1980. Flora europaea.
Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=401982. Accessed 15 April 2026.