Juncus compressus
| Round Fruited Rush | |
|---|---|
| |
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, the round fruited rush, 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
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
- ^ 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.