Juncus compressus

Juncus compressus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Juncaceae
Genus:	Juncus
Species:	J. compressus
Binomial name
	Juncus compressus; Jacq., 1762

Juncus compressus is a species of flowering plant in the rush family, Juncaceae.^[1] It is native to temperate Eurasia.^[1]Juncus compressus is easy to confuse with J. gerardii.

Description[edit]

About 80 cm in height. Rhizomes are short-creeping or densely branching. There are 1-3 cataphylls, and 1-2 leaves. The leaf blade is flat to slightly channeled, measuring 5–35 cm long and 0.8–2 mm wide. Inflorescences consist of 5-60 flowers. Flowers have six stamens, with filaments measuring 0.5-0.7 mm and anthers 0.6–1 mm. Seed capsules are brown.

Habitat[edit]

Juncus compressus prefers calcareous wetlands and is often associated with disturbed habitats, such as ditches, roadsides, railroads, and canal banks.^[2]

Invasive species[edit]

The plant is considered an invasive species in the United States of America.^[2]

US Spread
State/Province	First Observed
IL	1982
IN	1987
MI	1980
NY	1895
WI	1974

References[edit]

^ ^a ^b "Juncus compressus Jacq". Plants of the World Online. Retrieved 8 January 2021.
^ ^a ^b Laboratory, NOAA Great Lakes Environmental Research. "NOAA National Center for Research on Aquatic Invasive Species (NCRAIS)". nas.er.usgs.gov. Retrieved 2022-06-14.

This Poales-related article is a stub. You can help Wikipedia by expanding it.

[POWO-1] "Juncus compressus Jacq". Plants of the World Online. Retrieved 8 January 2021.

[:0-2] Laboratory, NOAA Great Lakes Environmental Research. "NOAA National Center for Research on Aquatic Invasive Species (NCRAIS)". nas.er.usgs.gov. Retrieved 2022-06-14.

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