Pond water starwort
Callitriche stagnalis · Aquatic plants
A stand of it · Photo: andrew2285 / CC0
Also called Mud water starwort
How to identify Pond water starwort
- Only spoon shaped leaves, even underwater
- Floating rosettes at the surface
- Pale fruits with broad wings
Similar plants
Native starworts have narrow underwater leaves, while this species has broad spoon shaped leaves throughout.
Growth profile
| Growing season | Grows from early spring into fall in mild areas and may remain green over winter. |
|---|---|
| Starts growing | About 45 F water |
| Light | Tolerates moderate turbidity |
| Depth | Moist mud to 2 feet |
| How it spreads | Stem fragments and seeds |
| Habitat | Lowland ditches, ponds and wet ruts over mud. |
Why it matters in a lake
A European plant that has spread in western lowlands. Forms dense mats in ditches and shallow ponds.
Where it is found
- Idaho: Rare
- Oregon: Occasional
- Wyoming: Not recorded
Classification
| Kingdom | Plantae |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Plantaginaceae |
| Scientific name | Callitriche stagnalis |
Need 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
