Water Whorlgrass
Catabrosa aquatica
- Native to:
- Afghanistan, Albania, Algeria, Argentina, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, Chile, China, Corse, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Greece, Greenland, Hungary, Iceland, India, Iran, Iraq, Ireland, Italy, Kazakhstan, Kirgizstan, Krym, Labrador, Lebanon-Syria, Libya, Morocco, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Palestine, Poland, Prince Edward I., Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, United States, Uzbekistan
iNaturalist: © yuri_bengus (iNaturalist #103686221)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Catabrosa
- Species:
- Catabrosa aquatica
- USDA Symbol:
- CAAQ3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug
- Ground Cover:
- Yes
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, shorebirds
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- rich, moisture-retentive loamy soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetland areas and along water bodies
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily in wet conditions; light may improve germination.
The above propagation data sourced from Claude AI