Waterthread pondweed
Potamogeton diversifolius · Aquatic plants
A stand of it · Photo: Michael J. Papay / CC BY
Also called Snailseed pondweed, Diverse leaved pondweed
How to identify Waterthread pondweed
- Very fine, threadlike submersed leaves
- Small oval floating leaves
- Tiny flower spikes in the leaf axils and on stalks
Similar plants
Small pondweed lacks floating leaves; sago pondweed has bushy leaves with sheaths.
Growth profile
| Growing season | Grows quickly in late spring and summer and may finish its cycle as shallow water dries. |
|---|---|
| Starts growing | No published figure; grows in warm, shallow water |
| Light | Tolerates moderate turbidity |
| Depth | Shoreline to 4 feet |
| How it spreads | Seeds and winter buds |
| Habitat | Shallow ponds, ditches and seasonal pools, often warm water. |
Why it matters in a lake
Often an annual in shallow seasonal water. Rarely a nuisance.
Where it is found
- Idaho: Rare
- Oregon: Occasional
- Wyoming: Rare
Classification
| Kingdom | Plantae |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Alismatales |
| Family | Potamogetonaceae |
| Scientific name | Potamogeton diversifolius |
Eurasian watermilfoil
Curly leaf pondweed
Brazilian elodea
Coontail
Elodea
Sago pondweed
Leafy pondweed
Common bladderwort
White water buttercup
Slender naiadNeed 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