Skip to main content

Java plum (Syzygium cumini)

Duwet or jamblang or Java plum (Syzygium cumini) is a species in Myrtaceae, a small or medium sized tree, sturdy, leaves grow all year round, woody stem, 10-30 meters in diameter, white, crooked, up to 20 meters high, reverberant up to 90 cm, low branched and titled round or irregular.

S. cumini has thick leaves, seated opposite and stalks 1-3.5 cm long. Strands oval to oval, 5-25 cm long, 2-10 cm wide. Wide base to round, blunt to tapered end and flat edge. Dark green color, shiny on the upper side, slightly smells of turpentine when crushed and young leaves are bright red.

Dlium Java plum (Syzygium cumini)


Inflorescences in panicles, appear on the branches, tenuous, have 1-3 branches. Small flowers, sitting tightly, 3-8 buds at each end of the stalk and fragrant. Calyx broad bell-shaped, 4-6 mm high, yellow to purplish. Crown is round and loose, 3 mm, white-gray to bright red and falls easily. Stamens 4-7 mm and pistils 6-7 mm.

The fruit is oval to ovoid in shape, often bent and 1-5 cm long. The skin is thin, smooth, shiny, dark red to blackish purple and sometimes white. Often in large herds.





Flesh is white or yellow-gray to red-purple, odorless, lots of fruit juice, sour to sweet-sour astringent taste. Seeds are oval and 3.5 cm long.

Jamblang grows at an elevation of 500-1800 meters. Rainfall is more than 1000 mm/year with a pronounced dry season. Duwet grows in floodplains and is drought tolerant, various types of infertile soils, wetlands, loams, calcareous soils and sandy soils.

The fruit is eaten fresh or mixed with a little salt and sometimes added sugar, then shaken in a closed container until soft. This fruit can reduce stains on the teeth. Rich in vitamins A and C.

Strong wood, waterproof and insect attack. The bark produces tannins and is used to dye nets. Small chips are used to inhibit the acidity of the wine. The leaves are used as animal feed.

Seeds to treat strikhnina and spleen treatment. Seeds, leaves and bark to reduce diabetes and prevent cataracts. Many contain essential oils, jambosine, organic acids, triterpenoids, resins containing ellagic acid and tannins.

Bark, leaves, fruit and seeds are used as a medicine for diabetes and diarrhea. Reducing heart and liver damage in cancer patients receiving doxorubicin chemotherapy, reducing the incidence of stomach cancer by up to 80% and treating epilepsy.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Myrtales
Family: Myrtaceae
Subfamily: Myrtoideae
Tribe: Syzygieae
Genus: Syzygium
Species: Syzygium cumini

Popular Posts

Purwaceng (Pimpinella pruatjan)

Purwaceng or purwoceng or antanan gunung or Viagra of Java ( Pimpinella pruatjan or Pimpinella priatjan ) are small termas growing horizontally in Apiaceae, growing in villages on Dieng Plateau, Central Java Province, Indonesia, at 1,500 to 2,000 meters above sea level, the roots have medicinal properties for aphrodisiacs and are usually processed in powder form for a mixture of coffee or milk. P. pruatjan grows flat on the ground but does not propagate, small leaves are reddish green for 1-3 cm in diameter. This plant is only found in Java and grows in high mountain areas. A low population where industrial demand is very high results in increasingly scarce. Another place that is likely to become a purwaceng habitat is the Iyang Mountains and the Tengger Mountains in East Java Province. Efforts to multiply and cultivate have a big problem where these plants have difficulty producing seeds. In vitro propagation research through tissue cultivation has been carried out to overcome ...

Six new species forming the Sumbana species group in genus Nemophora Hoffmannsegg 1798 from Indonesia

NEWS - Sumbawa longhorn ( Nemophora sumbana Kozlov, sp. nov.), Timor longhorn ( Nemophora timorella Kozlov, sp. nov.), shining shade longhorn ( Nemophora umbronitidella Kozlov, sp. nov.), Wegner longhorn ( Nemophora wegneri Kozlov, sp. nov.), long brush longhorn ( Nemophora longipeniculella Kozlov, sp. nov.), and short brush longhorn ( Nemophora brevipeniculella Kozlov, sp. nov.) from the Lesser Sunda Islands in Indonesia. The Lesser Sunda Islands consist of two parallel, linear oceanic island chains, including Bali, Lombok, Sumbawa, Flores, Sumba, Sawu, Timor, Alor, and Tanimbar. The oldest of these islands have been continuously occurring for 10–12 million years. This long period of isolation has allowed significant in situ diversification, making the Lesser Sundas home to many endemic species. This island chain may act as a two-way filter for organisms migrating between the world's two great biogeographic regions, Asia and Australia-Papua. The recognition of a striking cli...

New living fossil, Amethyst worm lizard (Amphisbaena amethysta), from Espinhaço Mountain Range, Brazil

NEWS - New species from the northern Espinhaço Mountains, Caetité municipality, Bahia state, Brazil. Amethyst worm lizard ( Amphisbaena amethysta ) is the 71st species of the genus with 4 precloacal pores and the 22nd species of Caatinga morphoclimatic domain. Identification of the new species shows the reptiles of the Mountains are far from complete and may contain greater diversity of endemic taxa. A. amethysta can be distinguished by its anteriorly convex snout, slightly compressed and unkeeled, pectoral scales arranged in regular annuli, four precloacal pores, distinct head shield, 185-199 dorsal and half annuli, 13-16 caudal annuli, a conspicuous autotomy spot between the 4th-6th caudal annuli, 16-21 dorsal and ventral segments in the middle of the body, 3/3 supralabials, 3/3 infralabials and a smooth and rounded tail tip. A. amethysta occurs in areas with an average elevation of 1000 meters in patches of deciduous and semi-deciduous forests associated with valleys, slopes, fore...