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Family Convolvulaceae
Lakmit
Merremia vitifolia (Burm. f.) Hallier f.
GRAPE-LEAF WOOD ROSE

Zhang ye yu huang cao

Scientific names Common names
Convolvulus angularis Burm. f. Kalalakmit (Sul.)
Ipomoea vitifolia Burm.f. Lakmit (Tag.)
Ipomoea vitifolia var. angularis (Burm.f.) Choisy Grape-leaf wood rose (Engl.)
Merremia vitofolia (Burm. f.) Hallier f. Grapeleaf merremia (Engl.)
Merremia vitifolia (Burm. f.) Hallier f. is an accepted nam. The Plant List

Other vernacular names
BANGLADESH: Dudh lota.
CAMBODIA: Var moba mek.
CHINESE: Zhang ye yu huang cao.
INDONESIAN: Ginda purang utang, Areuy kawoyang, Dewulu, Bilajang bulu.
MALAYALAM: Manja kolambi valli, Manja vayaravalli.
MALAYSIA: Akar lulang bulu, Ulan raya, Lulang bulu.
MARATHI: Navli.
THAI: Ching chaw, Jingjoa, Jing-jor.
VIETNAMESE: B[if]m l[as]nho.

Botany
Lakmit is a hairy, woody climber with slender stems. Leaves are rounded, 5 to 15 centimeters wide, palmately 5-lobed, and heart-shaped at the base. Sepals are hairy, ovate, 10 to 15 millimeters in length, and longer in the fruit. Corolla is yellow, bell-shaped, and 3.5 to 4 centimeters long. Capsule is rounded and 10 to 15 centimeters in diameter. Seeds are dark brown, smooth, about 5 millimeters in diameter.

Distribution
- Found in the Laguna Province in Luzon; and in Palawan, Balabac, Semirara, and Negros, in open grasslands by deserted dwellings, and in thickets at low altitudes.
- Also occurs in southeastern Asia and Malaya.

Constituents
- Leaves yield a glycoside, which on hydrolysis yields hydrocyanic acid and benzaldehyde.
- Phytochemicals in stems and leaves include alkaloids, terpenoids, phenolic compounds, tannins, carbohydrates, saponins, and flavonoids. (6)

Properties
- Hairs on the leaves are irritating.
- Juice considered diuretic and cooling.

Parts used
Stem, roots, fruits, plant juice.

Uses

Edibility
- Juice considered cooling and is given with milk and sugar.
- Immature, unripe fruits are chewed.
Folkloric
- Infusion is drunk for high fevers.
- Juice used for poulticing soreness and inflammation.
- In
Kerala, India, used for strangury and urethral discharges—immature unripe fruits are chewed or roots are cooked and eaten. (3)
- Roots ingested as stomachic.
- In Konkan, juice given with milk and sugar for fevers.
- In Peninsular Malaysia, infusion is drunk for high fever
- In Cambodia, infusion of stem used internally and externally for malaria and small pox.

- The Khasia and Bengali folk practitioners of Khakiachora village in Sylhet district of Bangladesh apply macerated whole plant to insect bite areas. (5)
- Used by people in Luwu, Southern Sulawesi, Indonesia, ans cure for diabetes mellitus. (8)
Others
- Sahasthara: Sahasthara is a Thai traditional medicine derived from Ayurveda. Merremia vitifolia is one of 21 plant ingredients in the Sahasthara formula used for muscle pain and as anti-inflammatory. (4)

Studies
Prussic Acid Plant:
According to F. Weehuizen, Merremia vitifolia is another prussic acid plant, whose leaves have the distinct odor of bitter almond oil. It yields 0.04% prussic acid, which in addition to benzaldehyde can be split off enzymatically. (7)
Flavonoid Content:
Study evaluated the flavonoid content of M. vitifolia (Bilajang bulu). The sample was prepared from air-dried leaves by maceration method using 96% ethanol. Flavonoid content by spectrophometry UV-Vis, using quercetin as standard, yielded a flavonoid content of 163.4 mg/L or equivalent to 0.01634%. (8)

Availability
Wild-crafted.

                  Abuse and Plagiarism of the Compilation on Philippine Medicinal Plants Under the Guise of Fair Use

Updated March 2020 / August 2016

IMAGE SOURCE: / Photo / Merremia vitifolia / Creative Commons: Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) / Click on image to go to source page / Convolvulaceae Unlimited
Additional Sources and Suggested Readings
(1)
CONVOLVULACEAE / Merremia Dennst. ex Endl.
/ Gen. Pl., Suppl. 1: 1403 (1841).
(2)
Merremia vitifolia / Synonyms / The Plant List
(3)
WILD EDIBLE CONVOLVULACEAN MEMBERS USED BY THE ULLADA TRIBES OF ALEPPEY DISTRICT, KERALA / Joseph M.A*and AntonyV.T / Journal of Science, Vol 4, Issue 7 (2014) pp 425-427.
(4)
ANTI-INFLAMMATORY ACTIVITY OF THAI TRADITIONAL REMEDY EXTRACT FOR MUSCLE PAIN TREATMENT CALLED SAHASTHARA AND ITS PLANT INGREDIENTS / MR. NARIN KAKATUM / Thesis / 2011
(5)
Medicinal Plants Used by the Folk and Tribal Medicinal Practitioners in Two Villages of Khakiachora and Khasia Palli in Sylhet District, Bangladesh / Md. Enamul Kabir Shaheen, Md. Afser Syef, Sudhangshu Shekhar Saha, Md. Shariful Islam, Md. Din Al Hossain, Md. Ariful Islam Sujan, Mohammed Rahmatullah /
Advances in Natural and Applied Sciences, 2010; 5(1): pp 9-19
(6)
PHYTOCHEMICAL SCREENING OF SELECTED SPECIES FROM CONVOLVULACEAE / MARIA EMILIA MASCARENHAS*, CIBANI RAMESH MANDREKAR, PRATIKSHA BHARAT MARATHE, LUENA JOEY MORAIS /
International Journal of Current Pharmaceutical Research, 2017; 9(6) / DOI: http://dx.doi.org/10.22159/ijcpr.2017v9i6.23438
(7)
Annual Report on Essential Oils, Synthetic Perfumes, & C . . . / Schimmel & Co. Aktiengesellschaft, Miltitz bei Leipzig / Google EBook
(8)
Analysis of Flavonoid Contents from Extracet Ethanol Bilajang Bulu Leaf (Merremia vitifolia) / Ella Hasanah, Ni Komang Ayu, Dela Puspila, Sukarti



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                                                            List of Understudied Philippine Medicinal Plants

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