- Family : LEMNACEAE
(Duckweed Family)
- Family (Hindi name) : OAL FAMILY
- Family (as per The APG System III) : Araceae
- Basionym : Lemna polyrhiza L.
- Synonym(s) : Lemna bannatica Waldst. & Kit. ex Schleid.; Lemna major Griff.; Lemna maxima Blatt. & Hallb.; Lemna orbicularis Kit. ex Schult.; Lemna orbiculata Roxb.; Lemna thermalis P.Beauv. ex Nutt.; Lemna transsilvanica Schur; Lemna umbonata A.Braun ex Hegelm.; Lenticula polyrrhiza (L.) Lam.; Spirodela maxima (Blatt. & Hallb.) McCann; Telmatophace orbicularis (Kit. ex Schult.) Schur; Telmatophace polyrhiza (L.) Godr.
- Species Name (as per The IPNI) : Spirodela polyrhiza (L.) Schleid.
- Common name : Greater duckweed, Great duckmeat
- Habit : Herb
- Habitat : Ponds, lakesides, rice fields, pools, ditches; not seen in regions with cool summers; upto 2900 m. altitude
- Comments / notes : Spirodela polyrhiza is used as a Chinese medicinal herb for diuretic effect, for reducing swelling, and for reducing perspiration.
- Flower, Fruit : June-April
- Distribution :
- Kerala : All districts of Kerala
- Maharashtra : Ahmednagar district, Kolhapur district, Nagpur district, Pune district, Satara district, Thane district, Yavatmal district
- Odisha : Khurda district
- Uttarakhand : Uttarakhand
- Himachal Pradesh : Himachal Pradesh
- Delhi : Delhi
- Uttar Pradesh : Uttar Pradesh
- Punjab : Punjab
- Jammu and Kashmir : Jammu and Kashmir
- Native : Alabama, Albania, Alberta, Altay, Arizona, Arkansas, Austria, Australia, Baltic States, Bangladesh, Belarus, Belgium, Belize, Benin, Borneo, Botswana, British Columbia, Bulgaria, Burundi, Buryatiya, California, Central African Republic, Central American P
- Exotic/Native : Native
- World Distribution : Cosmopolitan
- Conservation Status : Least Concern (LC)
- Literature :
- Uniyal B.P., Sharma J.R., Choudhery U., Singh D.K. (2007). Flowering Plants of Uttarakhand: A Checklist. Bishen Singh Mahendra Pal Singh: 246
- Saldanha & Nicolson, 1976 - Flora of Hassan district, Karnataka
- Rao & Razi, 1981 - Mysore
- Keshava Murthy & Yoganarasimhan, 1990 - Flora of Coorg district, Karnataka state
- B. D. Sharma, S. Karthikeyan & N. P. Singh 1996 - Flora of Maharashtra state - Monocotyledons
- Matthew, K.M., The Flora of Tamil Nadu Carnatic, Vol.3 (2). Diocesan Press, Madras. 1983
- Matthew, K.M., The Flora of Tamil Nadu Carnatic, Vol.3 (2). Diocesan Press, Madras. 1983
- Sasidharan, N. 2011. Flowering plants of Kerala. DVD, V 2, KFRI.
- Read more :
- Citation : Sankara Rao, K., Deepak Kumar (2024). India Flora Online. http://indiafloraonline-ces.iisc.ac.in/plants.php?name=Spirodela polyrhiza. Downloaded on 1 April 2025.
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