Botany
A climbing, rough, herbaceous vine. Leaves are opposite, ovate, 6 to 8 cm long, with pointed tips and rounded bases, rather coarsely toothed margins. Stalks are 3 to 6 cm long. Head are 3 cm in diameter, numbering 1 to 3, stalks about 7 to 10 cm long. Involucral bracts are narrowly oblong, somewhat recurved. Disk flowers are numerous and yellowish.

Distribution
Abundant in thickets, along tidal streams throughout the Philippines.

Properties and constituents
Roots are stomachic, leaves are diuretic and vulnerary.

Parts used
Roots, leaves.
.
Uses
Folkloric
Decoction of roots is slightly purgative.
Used with Blumea balsamifera for baths.
Leaves in decoction are antiscabious.
Decoction of roots and leaves for stomach aches and fevers.
Leaves used for cleaning and dressing ulcers.
Juice of leaves, with cow's milk, taken as tonic after childbirth.
Decoction of leaves with ginger for flatulence.
Flowers are known to be a violent purgative.
Plant is used for headaches and fevers.
In New Caledonia, juice of leaves in water used as remedy againsst children's dysentery. (source)
Elsewhere, poultice used for cuts, ulcers, sores, varicose veins, stomach aches.

Studies
• Antifeedant / Antifungal Activity: Cotton boll weevil antifeedant activity and antifungal activity (Rhizoctonia solani and Pythium ultimum) of extracts of the stems of Wedelia biflora: Extracts showed antifeedant activity which led to an investigation of antifungal properties.
• Analgesic Activity: Comparative study on analgesic activity of ethanol extracts of Wedelia biflora, W trilobata and E alba showed significant antinociceptive activity in a dose-dependent manner in mice comparable with standard drugs such as aspirin.
• Phytochemicals: Phytochemical screening yielded alkaloids, steroids, sugars, tannins, terpenes, proteins, carbohydrates, coumarins, anthraquinone, glucosides and cardiac glycosides.

Availability
Wild-crafted.