Humped bladderwort
Utricularia gibba · Aquatic plants
A stand of it · Photo: Robert Hoard / CC BY
Also called Swollen spurred bladderwort, Cone spur bladderwort
How to identify Humped bladderwort
- Very fine, hairlike stems forming tangled mats
- Leaves forked once or twice, each with one or two tiny bladders
- Small yellow flowers with a humped lower lip
Similar plants
Lesser bladderwort has flat leaf segments and bladders on separate stems, and common bladderwort is much larger.
Growth profile
| Growing season | Starts growing in late spring, flowers from midsummer into early fall, and dies back in fall, overwintering as stem pieces and seed. |
|---|---|
| Starts growing | About 55 to 60 F water |
| Light | Needs clear, shallow water |
| Depth | A few inches to 3 feet |
| How it spreads | Stem fragments and seeds |
| Habitat | Shallow, warm pond edges and pools, often creeping over mud or floating among other plants. |
Why it matters in a lake
Rare in the region and listed as a plant of conservation interest in Idaho and Oregon. Can form small tangled mats in shallow water.
Where it is found
- Idaho: Rare
- Oregon: Occasional
- Wyoming: Not recorded
Classification
| Kingdom | Plantae |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lentibulariaceae |
| Scientific name | Utricularia gibba |
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
