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Family Menyanthaceae
Pusong-lutang
Nymphoides cristata (Roxb.) Kuntze
FLOATING HEART

Shui pi lian

Scientific names Common names
Limnanthemum cristatum (Roxb.) Griseb. Lolokisen (Ilk.)
Menyanthes cristata Roxb. Pusong-lutang (Tag.)
Nymphoides cristata (Roxb.) Kuntze Crested floating heart (Engl.)
Villarsia cristata Spreng. Floating heart (Engl.)
  Snow flake (Engl.)
  White water snowflake (Engl.)
Limnanthemum cristatum (Roxb.) Griseb. is a synonym of Nymphoides cristata (Roxb.) Kuntze. The Plant List
Nymphoides cristata (Roxb.) Kuntze is an accepted name. The Plant List

Other vernacular names
BENGALI: Jai chirata.
CHINESE: Shui pi lian.
HINDI: Hinambala.

Snippets
- Crested floating heart is dicotyledonous aquatic plant that exhibits nymphaeid growth. Nymphoides probably derives from this botanical feature i.e., the plant is rooted in the submerged sediment and produced floating leaves at the ends of long stems. (4)
- The plant is aggressive and potentially invasive, capable of outcompeting native vegetations by forming dense floating canopies. (4)

Botany
Pusong-lutang is a perennial water plant of the habit of the water lily, producing carpet growth on surfaces of ponds or lakes. Stems are long and slender on the underside of floating leaves, rooted in submersed sediments or hydrosoil in shallow water. Plant can also be free-floating with tuberous propagules on the underside of leaves. Leaves are rounded, heart-shaped, 2.5 to 7.5 centimeters wide, and on long stalks. Flowers are white but yellow on the base. Corolla lobes are 6 to 8 millimeters long, and the tube bears a ring of white hairs around the throat. Fruit is a somewhat rounded capsule, and contains 10 to 20 seeds.

Distribution
- In shallow lakes, quiet streams, and sometimes rice paddies, at low and medium altitudes; however, ascending in Mount Data to an altitude of 2,100 meters.
- Sometimes cultivated in ponds or as an aquarium plant.
- Also found in India to Southern China.

Constituents
- In a study for various antioxidant substances, Nymphoides cristata yielded polyphenols 3.82 ± 1.02 mg GAE/g DW, flavonoids 23.28 ± 0.54 mg QUE/g DW, flavonols 6.71 ± 0.44 mg QUE/g DW. Anthocyanidins were not detected. (6)
- In a study for flavonols content in acidic hydrlysates, N. cristata yielded in quercetin 116.53 ± 26.66 µg/g DW, myricetin 1099.85 ± 37.03 µg/g DW, morin 3869.54 ± 213.27 µg/g DW, and kaempferol 107.41 ± 5.35 µg/g DW. (6)

Properties
-Studies have suggested hepatoprotective and antibacterial properties.

Parts used
Stalks, seeds and leaves.

Uses

Edibility
- Plant reportedly used for food; probably the roots and pseudostems.
Folkloric
- In India, stalks and leaves are pounded with oil and applied to ulcers and insect bites. Also, used as a substitute for Valeriana hardwickii in neurological disorders and colic.
- Decoction used as wash for parasitic skin complaints.
- Seeds eaten to destroy or prevent intestinal worms.
- Reported use for fever and jaundice.

Studies
Hepatoprotective / Roots:
Study evaluated a hydroalcoholic extract of roots of Limnanthemum cristatum for hepatoprotective activity against CCl4 induced hepatotoxicity in male Wistar rats. The root extract significantly increased total protein and antioxidant enzymes, catalase and reduced glutathione, and improvement in lipid peroxidation. Silymarin, a known hepatoprotective drug, was used as standard for comparison. (2)
• Antibacterial: Study evaluated the antibacterial activity of four aquatic macrophutes viz., Najas graminea, Nymphoides cristata, Myriophyllum tuberculatum and Utricularia stellaris collected from the Purulia district of West Bengal. N. cristata showed activity against one gram-negative bacteria, Vibrio parahemolyticus. (5)
• Antioxidant: Study for DPPH activity and TEAC values in acid methanolic hydrolysates and ethanolic extracts yielded DPPH scavenging activity IC50 34.01 ± 0.11 µg/mL, and TEAC-methanolic and TEAC ethanolic µmol Trolox/g DW of 47.80 ± 2.84 and 6.12 ± 0.25, respectively. ORAC (oxygen radical absorption capacity) was 129.32 ± 8.00 and 175.86 ± 1.09 µmol Trolox/g DW for hydrophilic and lipophilic ORAC, respectively. (see constituents above) (6)
Antioxidant Activity / Polysaccharide Content: Study evaluated the antioxidant activity, total polysaccharide content and optimum extraction conditions for pseudosstems, roots, and leaves. Results showed 80% ethanol extract of leaves had the best antioxidant activity and pseudostems showed the most polysaccharide content. Antioxidant activity was attributed to polyphenols or flavonoids. (7)

Availability
Wild-crafted.

© Godofredo U. Stuart Jr., M.D.

Updated June 2018 / December 2013

IMAGE SOURCE: / Crested Floatingheart (Nymphoides cristata) -- Mary Keim / Sept 19, 2011 / Creative Commons Attribution-NonCommercial-share alike 2.0 / click on photo to go to source page / flickr
OTHER IMAGE SOURCE: / Illustration / Nymphoides cristata (Roxb.) Kuntze [as Limnanthemum cristatum (Roxb.) Griseb.] [4630-705250-123342]
Rheede tot Drakestein, Hendrik van, Hortus Indicus Malabaricus, vol. 11: t. 29 (1692) / PlantIllustrations.org

Additional Sources and Suggested Readings
(1)
Limnanthemum cristatum (Roxb.) Griseb. / Indian Medicinal Plants: An Illustrated Dictionary / C. P. Khare
(2)
HEPATOPROTECTIVE ACTIVITY OF THE OF ROOTS OF LIMNANTHEMUM CRISTATUM AGAINST CARBON TETRACHLORIDE-INDUCED INJURY IN RATS / Phalke RUa, Ghosh Ra*, Priya Ga, Pitre SSa, Kadam VJa. / Pharmacologyonline 3: 777-784 (2010) / Pharmacologyonline 3: 777-784 (2010)
(3)
Nymphoides cristata / Synonyms / The Plant List
(4)
Aquatic Weeds: Crested Floating Heart (Nymphoides cristata) /
Leif N. Willey and Kenneth A. Langeland / University of Florida: IFAS Extension
(5)
Antimicrobial Activity of some Aquatic Angiosperms against Four Pathogenic Bacteria
/ Moumita Datta, Subrata Raha / Journal of Environment and Sociobiology, Dec 2015; Vol 12, Issue 2
(6)
Antioxidant activity in extracts of 27 indigenous Taiwanese vegetables.
/ Pi-Yu Chao, Su-Yu Lin, Kuan-Hung Lin, Yu-Fen Liu, Ju-Ing Hsu, Chi-Ming Yang, and Jun-You Lai / Nutrients, 2014 May; 6(5): pp 2115 – 2130. /  doi:  10.3390/nu6052115
(7)
Antioxidant activity and optimum extraction conditions of bioactive compounds from Nymphoides cristata (Roxb.) O. Kuntze /

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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