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Family Apiaceae / Umbelliferae
Hydrocotyle vulgaris Linn.

Xiang gu cao

Scientific names  Common names 
Hydrocotyle peltata Salisb.                Unresolved Common pennyworth (Engl.) 
Hydrocotyle pleiantha Ces.                Unresolved Marsh pennywort (Engl.) 
Hydrocotyle schkuhriana Rchb.           Unresolved Rot grass (Engl.) 
Hydrocotyle vulgaris Linn. Pennywort (Engl. 
  Sheep rot (Engl.) 
  Waternavel (Engl.) 
  White rot (Engl.)
Pennyworth is a shared common name between (1) Takip-kohol, centella asiatic, pennywort, asiatic pennywort, and (2) Pennywort, Hydrocotyle vulgaris
Hydrocotyle vulgaris L. is an accepted name The Plant List

Other vernacular names
CHINESE: Xiang gu cao.
FINNISH: Viitasammakonputki.
GERMAN: Gewöhnlicher Wassernabel.
IRISH: Lus na pingine.
SPANISH: Sombrerillo de agua.
SWEDISH: Spikblad

General info :
Genus hydrocotyle is an extensive family of almost 100 species of small, inconspicuous marsh herbs. The name "sheep rot" came from a false belief that it causes the "liver rot" when eaten by sheep; the real culprit proving to be liver fluke which lives in the plant. It has more than a century of recorded folkloric medicinal use.

Pennyworth is a creeping or floating perennial herb. Stems are slender, creeping, rooting at the nodes. Leaf stalk is attached to the leaf blade in the center of the under-surface. Leaves have long and slender petioles, glossy, dark green, crenate, peltate to orbicular, 6 to 9 veined, up to 4 cm across. Flowers are white, tinged with pink to purplish green, 1 millimeter, subsessile, 3 to 6 in a simple head-like umbel, 3 millimeters across, sometimes with 1 to 3 whorls of flowers below..

- Recently introduced to the Philippines.
- Grows wells in marshy and acidic soil.
- Provides good ground cover.
- Propagated by cuttings and seeds.

- Study isolated an amorphous saponin designated as
hydrocotyle-saponin B
. (6)

Parts utilized
Leaves and roots.

Edible: Leaves, cooked, in limited amounts.
- No recorded folkloric medicinal use in the Philippines.
- Elsewhere has a long recorded history of folkloric medicinal use.
- In 1850s, used in India for treatment of leprosy.
- Used for eczema and other dermatologic maladies: scrofula, ulcers.
- Also used for rheumatism, headaches, dizziness, bloody stools.
- Leaves used to dress burns or applied to skin diseases.
- In Malaya, traditionally used for treating wounds and as a diuretic.
- In Danish folk medicine, used for whooping cough.
- Preferred infusion use, 1 ounce of root in 1 pint of fluid, used as 1/2 - 1 fluid ounce 3 - 4 times daily.

Cytotoxicity: Study showed cytotoxic activity of compounds isolated from the stem and root of H vulgaris, tested against a human erythromyeloblasted leukemia cell line. (2)
Waste Water Purifying Effect: Study was done to evaluate the removal effects of H. vulgaris on CODCr, nitrogen and phosphorus in municipal domestic wastewater. Results indicated H. vulgaris was adaptable to grow in municipal domestic waste water with good purifying effect and is recommended as a specific aquatic vegetation in phytoremediation of municipal waste water. (3)
Phytoremediation Potential: Study evaluated the potential of H. vulgaris as an aquatic plant for phytoremediation of C.I. Basic Red 46. Overall, the increase in activity of antioxidant enzymes was much higher in the roots than in the leaves. (7)


Godofredo U. Stuart Jr., M.D.

Last Updated March 2016

Photo ©Godofredo Stuart / StuartXchange
OTHER IMAGE SOURCE: Line Drawing / Hydrocotyle vulgaris / Hippolyte Coste - Flore descriptive et illustrée de la France, de la Corse et des contrées limitrophes, 1901-1906 / Public Domain / alterVISTA
OTHER IMAGE SOURCE: Hydrocotyle vulgaris L. / Dipartimento di Scienze della Vita, Università di Trieste - Progetto Dryades / Andrea Moro - Città di Monaco di Baviera, Botanischer Garten München-Nymphenburg ., Baviera, Germania / Creative Commons Attribution / alterVISTA

Additional Sources and Suggested Readings
Hydrocotyle.—Water Pennywort
BIOASSAY GUIDED ISOLATION OF CYTOTOXIC COMPOUNDS FROM HYDROCOTYLE VULGARIS / Tee Shin Leong et al / Malaysian Journal of Biochemistry and Molecular Biology (2009) 17(1)
Purifying effect of Hydrocotyle vulgaris L. on municipal domestic wastewater / Zhou Yi-pin, Liu Wen et al / Journal of Zhongkai University of Agriculture and Engineering, 2011-02 / DOI: CNKI:SUN:ZNJX.0.2011-02-005
Hydrocotyle vulgaris / Synonyms / The Plant List
Sorting Hydrocotyle names / /Maintained by: Michel H. Porcher / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE / Copyright © 1995 - 2020 / A Work in Progress. School of Agriculture and Food Systems. Faculty of Land & Food Resources. The Univers ity of Melbourne. Australia.
The Glycosidic Constituents of Hydrocotyle Vulgaris L / Chr. J. K. Mink / Journal of Pharmacy and Pharmacology, Volume 11, Issue 1, pages 244–247, September 1959 / DOI: 10.1111/j.2042-7158.1959.tb12550.x
Potential of Hydrocotyle vulgaris for phytoremediation of a textile dye: Inducing antioxidant response in roots and leaves / F. Vafaei, Ali Movafeghi, Alireza Khataee, Seyed Yahya Salehi Lisar / ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 93 · MAY 2013 / DOI: 10.1016/j.ecoenv.2013.03.035

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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