Spotless Watermeal
Wolffia arrhiza
- Native to:
- Algeria, Angola, Austria, Baltic States, Bangladesh, Belgium, Benin, Botswana, Bulgaria, Burundi, Canary Is., Corse, Czechia-Slovakia, DR Congo, Ethiopia, France, Germany, Ghana, Greece, Guinea-Bissau, Hungary, India, Iran, Italy, Ivory Coast, Kenya, Korea, Lebanon-Syria, Madagascar, Morocco, Mozambique, Netherlands, Nigeria, North Caucasus, NW. Balkan Pen., Philippines, Poland, Portugal, Romania, Russia, Rwanda, Senegal, Sicilia, South Africa, Spain, Taiwan, Tanzania, Togo, Transcaucasus, Tunisia, Uganda, Ukraine, United States
Christian Berg (www.inaturalist.org)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Araceae
- Genus:
- Wolffia
- Species:
- Wolffia arrhiza
- USDA Symbol:
- WOAR2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 0 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, fish
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- nutrient-rich, silty or clay soil
- pH:
- 6.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in eutrophic water bodies.
Propagation & Germination
- Stratification:
- None required
- Notes:
- Reproduces almost exclusively by vegetative budding; seed production is extremely rare and poorly documented.
The above propagation data sourced from Claude AI