Araceae · Pistia

Water Lettuce / Nile Cabbage

Pistia stratiotes

Also known as Water Bonnets, Tropical Duck-Weed

HerboutdoorMedicinal
Habit
Herb
Found in India
Kerala, West Bengal, Karnataka & more
Flowering
May-February

Plant Details

Scientific name
Pistia stratiotes
Genus
Pistia
Family
Araceae
Habit
Herb
Native to
Africa, Asia
Distribution
Tropics & sub-tropics of the World
Found in India
Kerala, West Bengal, Karnataka, Tamil Nadu, Maharashtra, Assam, Delhi, Uttarakhand, Andhra Pradesh, Rajasthan, Telangana, Uttar Pradesh, Madhya Pradesh, Odisha, Goa, Chhattisgarh, Bihar, Puducherry, Punjab, Arunachal Pradesh, Gujarat, Haryana, Jharkhand, Manipur
Flowering & fruiting
May-February
Conservation status
Least Concern (LC)

Leaf characters

Leaf arrangement
BasalrecordedLeaves cluster at the base of the plant rather than along a stem.Pistia stratiotes is a perennial monocotyledon with thick, soft leaves that form a rosette. — Wikipedia, CC BY-SA 4.0
Leaf shape
Cordate (heart-shaped)recorded
Leaf margin
UndulaterecordedA wavy, rippled edge.The leaves can measure 2 – 15 cm long and are light green, with parallel venations and wavy margins. — Wikipedia, CC BY-SA 4.0

Typical of the family

Simple type leaf character
Type
Simple

Characters marked “recorded” are for Water Lettuce itself; the rest are typical of the Araceae family.

Flower & fruit characters

Fruit type
BerryrecordedA fleshy fruit with seeds embedded directly in the pulp, no central stone.Oval, green berries with ovoid seeds form after successful fertilization. — Wikipedia, CC BY-SA 4.0

Typical of the family

Inflorescence
Spike

Characters marked “recorded” are for Water Lettuce itself; the rest are typical of the Araceae family — flowering plants only.

Local Names

Hindi
अन्तरगंगा Antarganga, दलाढक Daladhak, हठ Hath
Nepali
जजल कुम्भी Jal Kumbhee, पानी बन्दा Paanee Bandaa, जलकुम्भी
Bengali
জলকুম্ভী Jalakumbhi, টাকাপানা Takapana, টোপাপানা
Tamil
ஆகாசத்தாமரை Akasha-T-Tamarai, அந்தரத்தாமரை Antara-T-Tamarai, குழித்தாமரை Kuli-T-Tamarai
Telugu
అంతరతామర Antara-Tamara, బుడగ తామర Budaga Tamara, ఆకాశతామర Akashatamara
Kannada
ಅಂತರಗಂಗೆ Antaragange, ಅಂತರತಾವರೆ Antarataavare, ಕುಂಬಿಕ Kumbika
Malayalam
ആകാശത്താമര Akasathamara, കോടപ്പായൽ Kodappayal, മുട്ടപ്പായൽ Muttappayal
Marathi
आकाशमूली Akashamuli, गोंडाळ Gondaal, जलमांडवी Jalamandavi

Water Lettuce in India

This floating aquatic plant, known as अन्तरगंगा Antarganga (Hindi), ஆகாசத்தாமரை Akasha-T-Tamarai (Tamil), అంతరతామర Antara-Tamara (Telugu), ಅಂತರಗಂಗೆ Antaragange (Kannada), ആകാശത്താമര Akasathamara (Malayalam), आकाशमूली Akashamuli (Marathi), is a common sight on ponds and slow-moving water. Pistia stratiotes is found across Kerala, West Bengal, Karnataka, Tamil Nadu, Maharashtra, NCT of Delhi, often forming dense mats on still water.

Uses

It's sometimes grown in ornamental ponds and aquariums for its rosette shape, and it can help take up excess nutrients from water, though it can also spread aggressively and clog waterways if not managed.

How to Identify Water Lettuce

A floating rosette of soft, pale green, velvety, ribbed leaves with no true stem, trailing feathery roots below the waterline. Flowers are tiny and inconspicuous, tucked at the base of the leaf rosette.

Frequently Asked Questions

What is Nile cabbage called in different Indian languages?
अन्तरगंगा Antarganga (Hindi); ஆகாசத்தாமரை Akasha-T-Tamarai (Tamil); అంతరతామర Antara-Tamara (Telugu); ಅಂತರಗಂಗೆ Antaragange (Kannada); ആകാശത്താമര Akasathamara (Malayalam); आकाशमूली Akashamuli (Marathi); জলকুম্ভী Jalakumbhi (Bengali).
Is water lettuce a weed?
It can be — while attractive and useful for ornamental ponds in small numbers, it reproduces quickly and can form dense mats that clog waterways if left unchecked.
Does it have real roots in the soil?
No — it floats freely on the water's surface, with feathery roots trailing directly into the water rather than anchored in soil.
Illustration representing the Araceae family
Botanical family

Araceae

Arum family

Water Lettuce belongs to the Araceae family.

The illustration represents the family — not necessarily this exact species.

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Sources: GBIF — Pistia stratiotes (India distribution & vernacular names) (CC BY 4.0) · Wikipedia — Pistia stratiotes (background/comprehension only) (CC BY-SA 4.0)