| Round Fruited Rush | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Spermatophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Juncaceae |
| Genus: | Juncus |
| Species: | J. compressus
|
| Binomial name | |
| Juncus compressus Jacq., 1762
| |
Juncus compressus, the round fruited rush, is a species of flowering plant in the rush family, Juncaceae.1 It is native to temperate Eurasia.1Juncus compressus is easy to confuse with J. gerardii.
Description
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
Juncus compressus prefers calcareous wetlands and is often associated with disturbed habitats, such as ditches, roadsides, railroads, and canal banks.2
Invasive species
The plant is considered an invasive species in the United States of America.2
| State/Province | First Observed |
|---|---|
| IL | 1982 |
| IN | 1987 |
| MI | 1980 |
| NY | 1895 |
| WI | 1974 |
References
References
- "Juncus compressus Jacq". Plants of the World Online. Retrieved 8 January 2021.
- Laboratory, NOAA Great Lakes Environmental Research. "NOAA National Center for Research on Aquatic Invasive Species (NCRAIS)". nas.er.usgs.gov. Retrieved 2022-06-14.