Skip to main content

Temulawak (Curcuma zanthorrhiza)

Temulawak or Java ginger or Javanese ginger or Javanese turmeric or Curcuma xanthorrhiza (Curcuma zanthorrhiza) is a plant species in Zingiberaceae, grows well in loose soil in tropical forests in the lowlands to an altitude of 1500 meters above sea level and tubers are used for medicinal herbs and drinks.

C. zanthorrhiza has pseudo stems up to 2 m tall. The stem is a midrib of upright, overlapping leaves, green or dark brown in color. Rhizomes are perfectly formed, large, branched and reddish brown, dark yellow or dark green.

Dlium Temulawak (Curcuma zanthorrhiza)

Each bud forms 2-9 leaves with a circular shape extending to lancet, green or light purple to dark brown, leaves 31-84 cm long and 10-18 cm wide, stems 43-80 cm long and each strand is connected with a midrib.

Flowers are dark yellow, uniquely shaped and clustered with lateral inflorescences. The stems and scales are in the form of lines, 9-23cm long and 4-6cm wide, having protectors with comparable crowns. Petals are white, hairy and 8-13mm long.

The crown is tubular, 4-5cm long, long, round white flower strands with a red tip, 1-2cm long and 1cm wide, while the rhizome is dark orange or brown, with a pungent aroma and bitter taste.

Rhizome contains 48-59.64% starch, 1.6-2.2% curcumin and 1.48-1.63% essential oils which are believed to improve kidney work, anti-inflammatory, acne medications, increase appetite, anti-cholesterol, anemia, antioxidants, cancer prevention, and anti-microbial.



Vegetative propagation using old rhizomes aged 9 months or more, then germinated in a damp, dark place for 2-3 weeks. Another way is to cut old rhizomes that are harvested and already have buds, then dried for 4-6 days.

Wild temu lawak grows in shady lands, temperatures of 19-30C and rainfall of 1,000-4,000 mm/year. In general, this plant has a high adaptability for various weather conditions in tropical climates. Roots adapt well to various types of soil including calcareous, sandy and clay soils.

C. zanthorrhiza grows at an altitude of 5-1000 m, but the highest starch content in the rhizome is at an altitude of 240 m. Curcuma is planted in the highlands to produce rhizomes that contain only a little essential oil. Pests include Chrysodeixis chalcites, Agrotis ypsilon and Mimegrala coerulenfrons.

The main content of rhizomes is protein, carbohydrates and essential oils consisting of camphor, glucoside, turmerol, and curcumin which are useful as anti-inflammatory and anti-hepototoxic properties. Pharmacological effects include hepatoprotector, lower cholesterol, laxative, diuretic, relieve joint pain, increase appetite, smooth milk, and cleanse the blood.

Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Zingiberales
Family: Zingiberaceae
Genus: Curcuma
Species: C. zanthorrhiza

Popular Posts

Yellow garden spider (Argiope appensa)

Yellow garden spider ( Argiope appensa ) is a species of spider in Araneidae that lives on the coast to forests on islands in the western Pacific Ocean. Black and yellow females are striking and have a length of 5.1-6.4 cm including long legs, while males are brown and have a length of about 1.9 cm. A. appensa lives on cliffs in the hills at 600 m above sea level in Kewu plain to rice fields in the lowlands. They make nests at a height of 1.5 meters from the ground between teak ( Tectona grandis ), sonokeling ( Dalbergia latifolia ), sonosiso ( Dalbergia sissoo ), crown flower ( Calotropis gigantea ) and various grasses. Yellow garden spiders grow in large sizes, but are not toxic to humans. Advanced builds ball-shaped nets and most of them make stabilizers which are zigzag-shaped lines in nets made of thicker bands. This species spends more time in stationary and sits in the middle of the net with its head down to wait for insects to be entangled in fine silk thread. Unli...

Skyflower (Duranta erecta)

Sinyo nakal or skyflower ( Duranta erecta ) is plant species in Verbenaceae, a broad shrub or small tree, up to 6 m high, stems growing upright or horizontally with broad clumps, many branches, bark light brown, old tree has axillary spines and grows to form dense colonies. D. erecta has bright green leaves, elliptical to ovoid, pointed or rounded ends, sitting opposite, 7.5 cm long, 3.5 cm wide, a main vein in the middle with several small lateral veins, petiole long 1.5 cm. Flowers are light blue or lavender or white, appear in tight clusters as on terminal stems and axils, often curled or pendulous, blooms in summer. The fruit is a berry having a stalk, small round, yellow or orange or white in color, up to 11 mm in diameter, an eye green in front and containing several seeds. Skyflower grows in dry or humid areas and lots of sun, rocky or sandy beaches, forests, farmland and disturbed places. Plants will grow at a rate of up to half a meter per year. Kingdom: Plantae Phylum:...

Broad-leaved dock (Rumex obtusifolius)

Broad-leaved dock ( Rumex obtusifolius ) is a species of plant in the Polygonaceae, herbaceous perennial, growing broadly, up to 150 cm tall, large, oval-shaped leaves with a heart-shaped base and rounded tip, large taproot with many branches extending to a depth of 150 cm. R. obtusifolius has leaves up to 30 cm long, 15 cm wide and green. Stems are long, hard, alternate, green or reddish in color and unbranched until just below the inflorescence. A main vein in the middle and green or reddish in color. Flat or wavy surface. The inflorescences consist of large clusters of racemes that contain small, greenish flowers that turn red as they mature. Seeds are reddish brown and dry. Broad-leaved dock grows in fertile soils, grasslands, waste lands, roadsides, ditches, coastlines and riverbanks, forest margins, forest clearing and agricultural land. The leaves are used as a salad to make vegetable broth or cooked like spinach. Dried seeds are used as a spice. Kingdom: Plantae Phylum: Tr...