Torenia crustacea (L.) Cham. & Schltdl.

Sirih ketok (Torenia crustacea) is a herb 8-20 cm tall of the Linderniaceae family, native to tropical Asia and now distributed across Africa, the Americas, and the West Indies. In Indonesia and Malaysia, this small plant is widely known as a traditional remedy ingredient. For generations, sirih ketok has been believed to address vaginal discharge, jaundice, and boils.

Grows in lowlands up to an elevation of 1,300 m above sea level. Favors moist to wet environments such as rice fields, grasslands, irrigated crops, riverbanks, swamp edges, moist meadows, lawns, disturbed forests, plantations, and along roadsides and paths. 

• Stem slender, sharply square to narrowly 4-winged, corners finely hairy, greenish-purple, heavily branched.
• Leaves opposite, greenish-purple, ovate, oblong or lanceolate, blunt or sub-obtuse tip, rounded base, irregularly toothed margins, 0.5-2.5 cm long, 0.5-1.5 cm wide.
• Flowers pale blue or purplish, calyx green or purplish.
• Fruit a brown capsule, thin, ovate, 3.5-5 mm long.
• Seeds pale brown, elliptical, blunt at both ends, tuberculate, 0.5 mm long.

Propagated generatively (by seed) and vegetatively (by offshoot separation or splitting from the clump). The seed size is very small and easily dispersed by wind, water, animals, and as a contaminant in machinery, soil, and plants. 

Flavonoids, lignin glucoside, phenyl alcohol glycoside, phenylpropene glycoside, glucosyl glycerol derivative, furanone, cinnamic acid derivative, diterpenes, anthraquinones, ionones, phenylpropanoids.
 

Treats navel infections, uterine bleeding, vaginal discharge, jaundice, colic, boils, itching and wounds; addresses body aches.
 

• Harvest the leaves or other plant parts, then sort the material (selecting healthy material).
• Wash the material with clean water, then air-dry/sun-dry until dry or the moisture content is below 10%.
• Pack in plastic (vacuum-sealed), label, and note the processing date. Store indoors (temperature 8-15°C).
   

Jukut mata heuyeup, Brobos kebo.