Common name: Sensitive Water Plant, Water mimosa, Garden puff • Hindi: लजालू Lajalu, छुई मुई Chui-mui • Manipuri: ঈশিং ইকাইথবী Ishing ikaithabi • Tamil: Sundaikkirai • Malayalam: Nittitoddavaddi • Telugu: Nirutalavapu • Kannada: ನಿದ್ರಾಯಮ Nidrayam • Bengali: পানীলজক Panilajak • Sanskrit: Alambusa

 

 

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Neptunia oleracea, commonly known in English as water mimosa or sensitive neptunia, is pantropical nitrogen-fixing perennial legume. Genus and common name come from Neptune, god of the sea, in reference to the aquatic habit of some species in the genus.  

Aerenchyma (white spongy air-conducting tissue that gives stems buoyancy) forms on stems floating in water, but does not form on stems growing on land. Plants typically grow to as much as 6" tall, but stems will spread in the water to 3-5' long. Stems are clad with bi-pinnate, fine, mimosa-like sensitive leaves that close up when touched. Primary leaf segments have 8-40 small oblong leaflets arranged in opposite pairs. Tiny greenish-yellow flowers are densely crowded into feathery orbicular inflorescences that bloom in summer. Fruits are flat pods (to 1-2" long). Floating aquatic plant stems often form thick foliage mats and is considered to be an invasive aquatic weed in some tropical waters where large mats may form that choke waterways, resulting in restricted water flow, reduced water quality, reduced fish activity and loss of some underwater and native wetland plants. 

 This plant is cultivated as a vegetable in southeast Asia (leaves and shoots have cabbage-like flavor). Young ends of stems and pods are edible and usually eaten raw as a vegetable in Thailand and Cambodia and cultivated much like rice. The young leaves, shoot tips and young pods are usually eaten raw or in stir-fries and curries such as kaeng som.^[1]   

Juice of the stem and roots are used for medicinal purposes. Whole plant extract exhibited cytotoxic activity on neoplastic cell lines. Extract of the herb exhibited hepatoprotective activity. 

(From Wikipedia on 27.1.15)

  

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Flora of Manipur: Neptunia - efloraofindia | Google Groups : 2 posts by 2 authors. Attachments (2)

Neptunia oleracea, a common vegetable in Manipur.

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Neptunia oleracea Lour. 2 posts by 2 authors

Lovely post, yet to see in real, thanks

along KSH 34 between Malamba & Gundolli :: Neptunia oleracea :: DVFEB45/78 : 1 post by 1 author. 5 images.

along Karnataka State Highway No. 34 ... between Malamba & Gundolli

Neptunia oleracea Lour. ... (family: Fabaceae)

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we have some arhar in Bengal that like to grow on the muddy banks of ponds but this in the pond... 

Aquatic plant for id / TBNMAY 2 /2 : 5 posts by 3 authors. Attachments (1) 

Please id this whch was found in Thenkarai tank, Madurai district, Tamilnadu in Jan 2015.

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Check for Neptunia oleracea..

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