Skip to main content

Common guava (Psidium guajava)

Jambu biji or jambu batu or stone guava or common guava (Psidium guajava) is a plant species in Myrtaceae, a small tree with upright stems and sympodial branches, 2-10 m tall, many branches, smooth bark, greenish brown, flowering throughout the year, growing in the tropics at altitudes up to 1200 m and very adaptive.

P. guajava has young rectangular-shaped stems and old hard woody stems. The surface of the trunk is slippery with a thin layer of skin and is easily peeled off. When the bark is exfoliated, the inside of the stem is green.

Dlium Common guava (Psidium guajava)

The leaves have a single structure and give off a distinctive aroma when squeezed, sitting cross-linked with the position facing and bones pinned. The shape of the leaf varies influenced by genetics and environment including oval, taper and inverted egg rounds.

Flowers have greenish white pistils with lobed head shapes. Polyandrous stamens, 0.5-1.2 cm long and white with a cream-colored head. Each flower has 180-600 stamens which the greater the diameter of the flower the more the number of stamens.

Single fruit is very dense and heavy, edible, thin skin and smooth to rough surface. Fruits have many variations for shape, size, color and taste, depending on the variety. Small and hard seeds grow in the middle of the fruit.

Fruits contain vitamin C, vitamin A, iron, calcium and phosphorus. The content of vitamin C is five times more than oranges. The fruit also contains saponins with oleanolic, Morin-3-O-α-Llyxopyranoside, morin-3-O-α-L-arabopyraoside and flavonoids, guaijavarin and quercetin.







Fruit skin contains 56-600 mg of ascorbic acid, while leaves contain flavonoids, tannins, ellagic acid, triterpenoids, guiajaverin, quercetin and other chemical compounds. Tree bark contains 12-30% tannins or polyphenols, resins and calcium oxalate crystals.

Roots are also rich in tannins, leukocyanidins, sterols and gallic acid. Twigs contain calcium, magnesium, phosphorus, potassium and sodium. Fluoride concentrations range from 0.02-0.11 ppm, copper (0.02-0.14 ppm), iron (2.86-5.14 ppm), zinc (0.31-0.57 ppm), manganese ( 0.00-0.26 ppm) and lead (0.00-0.11 ppm).

The fruit is usually eaten fresh, processed into various forms of food and drinks, treatments including improving digestion, lowering cholesterol, antioxidants, relieving fatigue and lethargy, dengue fever and canker sores. Ethanol extract of leaves as an antioxidant.

Leaves for anti-inflammatory, antidiarrheal, analgesic, antibacterial, antidiabetic, antihypertensive, reduce fever, increase platelets and inhibit the growth of rotavirus. Bark and roots to cure dysentery, vaginal discharge, thrush, ringworm, inflammation of the stomach, swollen gums and sunburned skin.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Myrtales
Family: Myrtaceae
Subfamily: Myrtoideae
Tribe: Myrteae
Genus: Psidium
Species: Psidium guajava
Varieties: Psidium guajava var. cujavillum, Psidium guajava var. guajava, Psidium guajava var. minor.

Popular Posts

Korean mulberry (Morus indica)

Murbei or Korean mulberry ( Morus indica ) is a species of plant in Moraceae, shrub or small tree, up to 10 meters tall, slow growing, cylindrical stem, light brown with white nodules, M. indica has heart-shaped or oval-shaped leaves and sometimes three-lobed, 4-12.5 cm long, 2.5-7.5 cm wide, pointed tip, serrated margin, green and has a stalk. Monoecious inflorescences with male and female grow on the same tree, though often on different branches. Male flowers have a size of 9-11.5 mm and are covered with fine hairs. The female flowers are subglubose or only round in shape, measuring 6-9.5 mm. Stigma is 3.5 mm long with short, thick hair. The female flowers form compound fruit and are fleshy, green and white-haired to white, red and black when ripe. Korean mulberry is used in regulating blood glucose levels in diabetic patients. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Rosales Family: Moraceae Genus: Morus Species: Morus indica

Broad-handed carpenter bee (Xylocopa latipes)

Broad-handed carpenter bee ( Xylocopa latipes ) is an animal species in the Apidae, tropical wood bees, very large, strong, solitary lives and builds nests by burrowing into fallen trees to telephone poles in forests and cities with warm tropical climates. X. latipes is overall black and shiny with black wings that turn bluish or greenish or metallic purple in sunlight. A pair of large eyes and a pair of antennae have broad bases. The back has a horizontal line. The abdomen is oval in shape with segments, the margins are wide and the back has thick hair. The broad-handed carpenter bee produces a loud, distinctive low-pitched hum that can be heard in flight. Kingdom: Animalia Phylum: Arthropoda Subphylum: Hexapoda Class: Insecta Subclass: Pterygota Order: Hymenoptera Suborder: Apocrita Infraorder: Aculeata Superfamily: Apoidea Epifamily: Anthophila Family: Apidae Subfamily: Xylocopinae Tribe: Xylocopini Genus: Xylocopa Subgenus: Platynopoda Species: Xylocopa latipes

Malabar melastome (Melastoma malabathricum)

Senggani or malabar melastome ( Melastoma malabathricum ) is a plant species in Melastomataceae, shrubs, 0.5-5 m tall, woody stems, sympodial branches and reddish brown, scaly young branches or tightly haired, taproots and brown, widely used for materials ink and medicine. M. malabathricum has single and stemmed leaves, oval, 2-20 cm long, 1-8 cm wide, tapered, flat edges, rough and hairy surface, upper surface dark green and bright green underside. A straight bone in the middle and two curved bones on the edge. Malabar melastome blooms throughout the year, compound, clustered at the tips of branches and light purple, 3-4 cm in diameter, sticky petals, hair, short end, tapered tip, scaly protective leaves and reddish purple. The flower has 8-12 stamens, 3 cm long, pink, a pistil, potted green potted head and ovaries have 4-6 spaces. Five crowns, ovoid and bright purple. The fruit has a rough skin, dark red and has many black seeds with aryl, cup-shaped and 8 mm long. Ripe fru...