Araceae
Rootless duckweed
Wolffia arrhiza
- Family
- Araceae
- Genus
- Wolffia
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Common names
By language (21)
- arz
- ولفيا ارهيزا
- Bangla
- গুঁড়িপানা
- Belarusian
- Вольфія бескаранёвая
- Bulgarian
- Безкоренова волфия
- Chinese
- 无根萍, 無根萍, 卵萍, 微萍, 水蚤萍, 芜萍, 萍沙
- Croatian
- Beskorjenska sitna leća
- Czech
- Drobnička bezkořenná
- Dutch
- Wortelloos kroos
- English
- Rootless duckweed, Spotless watermeal
- Finnish
- Vesilinssi
- French
- Lentille deau sans racines, Wollfie
- German
- Wurzellose Zwergwasserlinse, Wurzellose Wasserlinse, Zwergwasserlinse, Wurzellose Zwerglinse, Zwergwasserlinsen
- hsb
- Wšědne zelenčko
- lah
- دانہ بوٹی
- Malayalam
- വുൾഫ്ഫിയ അറൈസ
- Persian
- عدسک آبی بیریشه
- Polish
- Wolfia bezkorzeniowa
- Russian
- Вольфия бескорневая, Wolfia arrhiza
- Tamil
- மிகச் சிறிய தாவரம்
- Ukrainian
- Вольфія безкоренева
- Welsh
- Llinad di-wraidd
Synonyms
- Bruniera vivipara Franch.
- Horkelia arrhiza (L.) Druce
- Horkelia arrhiza Druce
- Lemna arrhiza L.
- Lemna microscopica Schur
- Lenticula arrhiza (L.) Lam.
- Wolffia delilii Miq.
- Wolffia michelii Schleid.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
Photo: Christian Fischer, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Grzegorz Grzejszczak, CC BY-SA 4.0, from iNaturalist 
Photo: Christian Fischer, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Valentin Kosterin, CC BY 4.0, from iNaturalist 
Photo: Torque, CC BY 4.0, from Wikimedia Commons 
Photo: Dawid Juszczak, CC BY 4.0, from iNaturalist 
Photo: Stefan.lefnaer, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Павлик Лисицын, CC BY 4.0, from iNaturalist 
Photo: Stefan.lefnaer, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Dino Babić, CC BY 4.0, from iNaturalist 
Photo: Stefan.lefnaer, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Oleg Kosterin, CC BY 4.0, from iNaturalist
More in Wolffia
- Asian watermealWolffia globosaAraceae
- Columbian watermealWolffia columbianaAraceae
- Brazilian watermealWolffia brasiliensisAraceae
- Wolffia australianaAraceae
- Northern watermealWolffia borealisAraceae
- Wolffia angustaAraceae
- Wolffia elongataAraceae
- Asian watermealWolffia cylindraceaAraceae
- Wolffia microscopicaAraceae
- Wolffia neglectaAraceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.