Tapered rush
Juncus acuminatus · Aquatic plants
Out of the water · Photo: Becky Dill / CC0
Also called Knotty leaf rush
How to identify Tapered rush
- Round hollow leaves with joints
- Many small straw colored heads in an open cluster
- Clumped stems 1 to 3 feet
- No rhizomes
Similar plants
Jointed rush has darker brown heads; knotted rush has rhizomes.
Growth profile
| Growing season | Grows from spring, flowers June to August. |
|---|---|
| Starts growing | About 50 F soil |
| Light | Needs full sun |
| Depth | Moist shoreline to about 4 inches of water |
| How it spreads | Seeds |
| Habitat | Pond edges, ditches and wet meadows at low elevation. |
Why it matters in a lake
Locally common at low elevations.
Where it is found
- Idaho: Rare
- Oregon: Occasional
- Wyoming: Not recorded
Classification
| Kingdom | Plantae |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Poales |
| Family | Juncaceae |
| Scientific name | Juncus acuminatus |
Broadleaf cattail
Hardstem bulrush
Reed canarygrass
Purple loosestrife
Soft rush
Yellow flag iris
Broadleaf arrowhead
Western water hemlock
Beaked sedge
Baltic rushNeed a hand?
Is it taking over your lake?
We identify what is growing, map how much of it there is and build a control plan that targets it without harming the rest of the lake.
Idaho / Wyoming (208) 501-4531Oregon (541) 280-0596