Species: Limnocharis flava (L.) Buchenau. Weed type: Grass-like leaves. Global description: Aquatic, perennial herb, partially submerged, rooting in the. A popular and highly esteemed vegetable in the tropics, especially in parts of SE Asia, the plant is both gathered from the wild and also sometimes cultivated in. [Others]: Limnocharis flava was introduced to Southeast Asia more than a century ago and has become naturalised in Indonesia, Malaysia, Thailand, Burma and.

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Sawah lettuce Limnocharis flavaalso known as yellow sawah lettuve, yellow burr head, or yellow velvetleaf, is an aquatic flowering, clump-forming, perennial plant which produces erect stems about cm tall from a short thick rhizome.

The triangular leaves form into clumps. The stems are hollow.

The inflorescence consists of three-lobed yellow flowers. The fruits are spherical. Though considered as an invasive plant and has great potential to become a weed, it is a known vegetable in some countries. In particular, the flower stalk and leaves are used in dishes as well as the immature flower buds.

The plant is also used for green manure. Leaves, leaf stems, flower stalks and young inflorescences are eaten cooked[ ]. They can be steamed like endive or spinach, added to soups or mixed with other vegetables[ ]. The young leaves and tops of the plant are boiled or cooked in mixed soups[ ]. The vegetable contains relatively high levels of Calcium, Iron and vitamin A, which are nutrients that are frequently insufficient in the diets of women in low-income countries[ ].

Plants For A Future can not take any responsibility for any adverse effects from the use limnocbaris plants. Always seek advice from a professional before using a plant medicinally. The plants are sometimes used for green manure[ ]. Other Uses None known. Grows best in shallow, neutral to slightly acidic water[ ]. If allowed to grow unchecked, the plant may become a very invasive environmental fflava of streams and wetlands.


It has become a serious weed in rice fields, irrigation canals and wetlands in South-East Asia[ ]. Clumps of the weed provide a congenial breeding site for disease-vectors, including mosquitoes, which encourages the spread of diseases such as Japan fever and dengue fever[ ].

Limnocharis flava Sawah Lettuce, Sawah Flowering Rush PFAF Plant Database

Plants are reproduced mainly by seeds – these are dispersed via the production of fruitlets, which are buoyant and carried by water to new localities, dispersing seeds along the way[ ]. Fruiting takes place throughout the year, with a single fruit producing about 1, seeds and a single plant producing about 1, fruits per year[ ].

Plants For A Future have a number of books available in paperback and digital form. Our new book to be released soon is Edible Shrubs. Seed – seed must be kept damp or it loses viability[ ]. Sow in a constantly damp medium at 20c, cover with silver sand and immerse in 1cm of water once the seedlings have germinated[ ].

Right plant wrong place. We are currently updating this section.

This taxon has not yet been assessed. For a list of references limnochqris on this page please go here A special thanks to Ken Fern for some of the information used on this page.

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Alismataceae – Limnocharis flava (L.) Buchenau

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Limnocharis flava – L.

Shallow swamps, limnocahris, pools and wet rice fields, occurring usually in stagnant fresh water[ ]. You can translate the content of this page by selecting a language in the select box. Limnocharis flava is an evergreen Perennial growing to 0.

It is hardy to zone UK It cannot grow in the shade.

Riceweeds en – Alismataceae – Limnocharis flava (L.) Buchenau

It prefers moist or wet soil and can grow in water. QR Code What’s this? Some information cannot be used for commercial reasons or be modified but some can. Please view the copyright link for more information. Sawah Lettuce, Sawah Flowering Rush. In or at the edge of water[ ].