Wolffia arrhiza (L.) Horkel ex Wimmer

 
  • Family : LEMNACEAE
    (Duckweed Family)
  • Family (Hindi name) : LEMNA FMILY
  • Family (as per The APG System III) : Araceae
  • Synonym(s) : Bruniera vivipara Franch.; Horkelia arrhiza (L.) Druce; Lemna arrhiza L.; Lemna microscopica Schur; Lenticula arrhiza (L.) Lam.; Wolffia delilii Miq.; Wolffia michelii Schleid.
  • Species Name (as per The IPNI) : Wolffia arrhiza (L.) Horkel ex Wimm.
  • Common name : Spotless watermeal, Rootless duckweed
  • Vernacular name :
    • Soru-puni, Khudi-pana (Assamese)
  • Habit : Herb
  • Habitat : Ponds, tanks
  • Comments / notes : Aquatic, common throughout floating in ponds and tanks
  • Flower, Fruit : June-October
  • Collection Nos : HFP 2885
  • Distribution :
    • Karnataka : Hassan district, Tumakuru district, Davanagere district, Mysuru district
    • Maharashtra : Nagpur district, Osmanabad district, Satara district
    • Uttarakhand : Uttarakhand
    • Himachal Pradesh : Himachal Pradesh
    • Arunachal Pradesh : Siang
    • Uttar Pradesh : Uttar Pradesh
    • Jammu and Kashmir : Jammu and Kashmir
  • Native : Algeria, Angola, Austria, Baltic States, Bangladesh, Belgium, Benin, Botswana, Bulgaria, Burundi, Canary Islands, Cape Provinces, Central European Rus, Corse, Czechoslovakia, East European Russia, Ethiopia, France, Free State, Germany, Ghana, Great Britai
  • Exotic/Native : Native
  • World Distribution : Algeria, Angola, Austria, Baltic States, Bangladesh, Belgium, Benin, Botswana, Bulgaria, Burundi, Canary Islands, Cape Provinces, Central European Rus, Corse, Czechoslovakia, East European Russia, Ethiopia, France, Free State, Germany, Ghana, Great Britain, Greece, Guinea-Bissau, Hungary, India, Iran, Italy, Ivory Coast, Kenya, Korea, KwaZulu-Natal, Lebanon-Syria, Madagascar, Morocco, Mozambique, Netherlands, Nigeria, North Caucasus, Northern Provinces, Philippines, Poland, Portugal, Romania, Rwanda, Senegal, Sicilia, South European Russi, Spain, Sri Lanka, Taiwan, Tanzania, Togo, Transcaucasus, Tunisia, Uganda, Ukraine, Yugoslavia, Zaïre
  • Conservation Status : Least Concern (LC)
  • Literature :
    • Saldanha & Nicolson, 1976 - Flora of Hassan district, Karnataka
    • Rao & Razi, 1981 - Mysore
    • Bhaskar & Kushalappa, 2013- Flora of Tumkur District
    • Manjunath et al., 2003 - Davanagere
    • B. D. Sharma, S. Karthikeyan & N. P. Singh 1996 - Flora of Maharashtra state - Monocotyledons.
    • Uniyal B.P., Sharma J.R., Choudhery U., Singh D.K. (2007). Flowering Plants of Uttarakhand: A Checklist. Bishen Singh Mahendra Pal Singh: 246
    • H J, Chowdhery, et al. Materials for Flora of Arunachal Pradesh. Volume 3, Botanical Survey of India, 2009. Pg.: 241
  • Read more :
  • Permalink : http://indiaflora-ces.iisc.ac.in/plants.php?name=Wolffia arrhiza
  • Citation : Sankara Rao, K., Deepak Kumar (2026). India Flora Online. http://indiaflora-ces.iisc.ac.in/plants.php?name=Wolffia arrhiza. Downloaded on 20 January 2026.

Botanical Description

Field Image(s)

Habitat

Distribution District wise

India Distribution

World Distribution

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