narrowleaf water plantain
Alisma gramineum
- Native to:
- Afghanistan, Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Egypt, France, Germany, Greece, Hungary, India, Iran, Italy, Kazakhstan, Krym, Lebanon-Syria, Libya, Morocco, Netherlands, North Caucasus, NW. Balkan Pen., Pakistan, Poland, Romania, Russia, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Ukraine, United States, Uzbekistan
iNaturalist: © jamie_fenneman (iNaturalist #156667766)





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Alismataceae
- Genus:
- Alisma
- Species:
- Alisma gramineum
- USDA Symbol:
- ALGR
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- white, pink
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, wetland birds
Soil Requirements
- Soil Type:
- rich, silty, waterlogged soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in shallow water or wetland areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 7–21 days
- Notes:
- Seeds require light for germination and saturated or submerged conditions. Best germinated in shallow water or very wet soil.
The above propagation data sourced from Claude AI