Avocado

Avocado

Persea americana (Lauraceae)

Characteristics

Evergreen trees, 10-20 m tall. Alternately arranged leaves, 12-25 cm long. The fruit of the plant (yes, avocado is a fruit!) is botanically a large berry containing a single large seed.

Distribution

Native probably of Mexico and Central America.

Natural Medical Properties

Avocados are very nutritious and contain more potassium than bananas. They are loaded with heart-healthy monosaturated fatty acids. Avocados are used to lower cholesterol levels.

Did you know?

All avocados are picked by hand. Avocados are harvested by using a 5-meter pole to reach the high-hanging fruits. They tend to be more expensive than other fruits because of the high costs of labor.

Avocados are related (same family) to bay leaf (Laurus nobilis).

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Pomegranate

Pomegranate

Punica granatum (Lythraceae)

Characteristics

Shrubs or small trees, 2-3 m tall, glabrous. Leaves opposite. Flowers bright red, 3 cm. Fruit globose, leathery berries, variable in color, red to yellow-green or red-brown, 5-12 cm. Seeds numerous, covered with pulp. Edible..

Distribution

Native to the Middle East between Iran and Northern India, cultivated since ancient times throughout the Mediterranean region. Introduced by the Spanish into America in the 16th century. Today widespread in tropical and subtropical regions of the world.

Natural Medical Properties

The pomegranate has a long history of herbal use dating back more than 3,000 years.

All parts of the plant contain unusual alkaloids, known as ‘pellitorines’, which paralyse tapeworms so that they are easily expelled from the body by using a laxative.

The plant is also rich in tannin, which makes it an effective astringent. It is used externally in the treatment of vaginal discharges, mouth sores and throat infections. The whole plant, but in particular the bark, is antibacterial, antiviral and astringent. This remedy should be used with caution, overdoses can be toxic
The flowers are used in the treatment of dysentery, stomach-ache and cough.

Along with the leaves and seeds, they have been used to remove worms.

The juice of the flowers is used to treat nose bleeds.
The seeds are demulcent and stomachic.

A decoction of the seed is used to treat syphilis.
The fruit is a mild astringent and refrigerant in some fevers and especially in biliousness. It is also cardiac and stomach-ache.

The juice of the fruit is used to treat jaundice and diarrhoea. Combined with the juice of Cynodont dactylion leaves, it is used for treating runny noses and colds.
The dried rind of the fruit is used in the treatment of amoebic dysentery, diarrhoea etc. It is a specific remedy for tapeworm infestation.

The rind of the fruit is ground in water and drunk every morning by diabetics.
The stem bark is emmenagogue. Both the stem and the root barks are used to expel tapeworms.  

Use this with caution, the root bark can cause serious poisoning. The bark is harvested in the autumn and dried for later use.
The dried pericarp is decocted with other herbs and used in the treatment of colic, dysentery, leucorrhoea etc.
An ethyl alcohol extract of the fruit has shown interesting oestrogenic properties. In addition, it has been shown to reduce cell death from oxidation. The plant has potential as an active ingredient in preparations for the treatment of skin-ageing in post-menopausal women.

Did you know?

Pomegranates are mentioned many times in the Bible. In the Qur’an, pomegranates are named as one of the fruits that will grow in the gardens of paradise.

The juice of Pomegranate is the source of grenadine syrup, used in flavorings and liqueurs.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Malay Rose Apple (Fijian: Kavika)

Malay Rose Apple (Fijian: Kavika)

Syzygium malaccense (Myrtaceae)

Characteristics

Trees, up to 15m tall. Very dense rounded crown. Large leaves, 20-30 cm long, 8-18 cm wide. Flowers red. Fruit (berry), edible, red, some varieties with white or pink skin. Flesh white, surrounds a large seed. Taste bland but refreshing.

Distribution

Native to Australia and Malesia (Islands of Malaysia, Indonesia, Papua New Guinea). Cultivated since prehistoric times by Austronesian people. Introduced to Oceania as canoe plants (more than 4000 years ago). Today, spread throughout the tropics. Conservation status: rare.

Natural Medical Properties

Various parts of the tree are used in traditional medicine, the leaves and bark have in fact been shown to possess antibiotic activity, the bark is astringent, whilst the plant is also weakly hypoglycaemic. The plant contains tannins and is astringent. In particular, the bark, leaves and roots of Malay apple are used against different ailments.
An infusion of the bark is used to treat tuberculosis, mouth infections, stomach-ache and abdominal ailments. The bark is used to cure mouth sores in children. It is also used as a purgative and to treat venereal diseases.
The leaves are used to treat red eyes. A decoction of the leaves is used as a wash on skin infections.
Other conditions treated with this plant include cough; yellow urine and bad appetite; as a remedy for deep bone pains, diabetes, gonorrhoea, swollen stomach after childbirth, sore throat, thrush, bronchitis and to relieve constipation.

Did you know?

Jam is prepared by stewing the flesh with brown sugar and ginger.

Close related (same genus) to the Leba tree (Syzygium neurocalyx, #37 in the botanical tour).

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Money Tree

Money Tree

Pachira aquatica (Malvaceae)

Characteristics

Small trees, normally 4-5 m, in the wild up to 18 m. Trunk sometimes buttressed. Bark smooth. Always on moist soil (wetlands). Leaves shiny green, palmate with lanceolate leaflets. Flowers are among the largest tree flowers in the world. Long narrow petals, open like a banana peel and reveal hairlike yellowish orange stamens.

Distribution

Native to swamps of Central and South America, often cultivated throughout the tropics as a popular ornamental plant (many specimens in cultivation sold as Pachira aquatica are actually the simillar species P. glabra).

Natural Medical Properties

No known.

Did you know?

The name “money tree” seems to refer to a story of its origin, where a poor man prayed for money, found this “odd” plant, took it home as an omen, and made money selling plants grown from its seeds.

Another common name for the money tree (Pachira aquatica) is “French Peanut”.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Soursop

Soursop

Annona muricata (Annonaceae)

Characteristics

Evergreen tree, up to 10 m. Young branches hairy. Broad oval leaves, 5-18 cm long, 2-7 cm wide. Fruits dark green and prickly, can be up to 30 cm long, edible, slightly acidic taste when ripe (“Soursop”).

Distribution

Exact origin is unknown. Native to the tropical regions of the Americas and the Carribean. Today widely propagated in the tropics and subtropics of the world.

Natural Medical Properties

Soursop is often used in traditional medicine. Research has shown that it is antimalarial, uterine stimulant, anticrustacean, antiparasitic, cytotoxic (acerogenins), cardiac depressant, anti-amoebic, antibacterial, antifungal, hypertensive, spasmogenic, vasodilator, insecticide, smooth muscle relaxant.

The plant contains is quinoline alkaloids including reticuline.

The seed contains galactomannan, sitosterol, stigmasterol and cholesterol.

The leaves are antispasmodic, calmative, narcotic.

The crushed leaves are used as a remedy for distension and dyspepsia, scabies and skin diseases, rheumatism, coughs and colds.

A decoction, often combined with Ludwigia erecta, is used to treat hypertension and heart conditions such as palpitations.

A decoction of the leaves combined with the leaves of avocado (Persea americana) is drunk as an antihypertensive.

The leaves may also be used to make a decoction, which is taken orally with salt for digestive tract ailments and to relieve fatigue.

The pungent leaves are well-known for their sleep-inducing properties – they can be taken in an infusion, or simply placed under the pillow.

Applied externally, the crushed leaves are used to maturate boils and abscesses.

A massage of the leaves is good for remedying nervous shock.

The fruit is antiscorbutic, febrifuge, mildly anti-dysenteric and a good vermifuge.

It is used to treat bedwetting in children.

A decoction is used to remedy excess foot and hand perspiration.

The fruit is used to make a tonic that is used for treating fever, headache, hypertension, and heart problems.
A crushed leaf and seed decoction is taken orally for intestinal malaise.
The leaves and bark are cardiotonic and sedative.

A decoction is used for treating anxiety attacks.

The green bark is rubbed on wounds to stop bleeding.
Flower or flower bud tea is mixed with honey for colds, chest pain and nerve disorders.
The bark and young fruits, which contain tannin, are used to treat diarrhoea and dysentery.

The green bark is rubbed on wounds to stop bleeding.
The seed is an ingredient in a remedy for treating convulsions.

Did you know?

Soursop (sometimes as “Graviola”) is closely related (same genus) to “Cherimoya” (Annona cherimola) and “Custard apple” (Annona reticulata). Soursop is used as an alternative cancer treatment, but there is no medical evidence it is effective

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Lemon

Lemon

Citrus limon (Rutaceae)

Characteristics

Small evergreen trees, up to 6 m. Numerous axillary spines, 5-27 mm. Leaves elliptic to oval, 4-12 cm long, 2-6 cm wide. Fruits edible, acid (pH 2.2), 5-10 cm, light yellow (lemon fruit).

Distribution

Native to Northeastern India, Northern Burma and Southern China. Introduced to the New World by Columbus in 1498, today widespread in the tropics and subtropics.

Natural Medical Properties

Antioxidant, Vitamin C and numerous phytochemicals for health immune boosting. Drink on an empty stomach with water in the morning to cleanse the body.

Did you know?

The juice of the lemon is about 5% to 6% citric acid, which gives the sour taste. Before the development of fermentation-based processes, lemons were the primary commercial source of citric acid.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Arabian coffee

Arabian coffee

Coffea arabica (Rubiaceae)

Characteristics

Small trees or large shrubs, 5-8 m tall. Opposite leaves. The flowers are white, 10-15mm in diameter. The fruit is red (in cultivated forms yellow or purple).

Distribution

Arabic coffee was first found in Yemen and documented by the 12th century. Today, it is cultivated throughout the tropical areas of the world.

Natural Medical Properties

Used to improve energy levels, to make you smarter and to burn fat. It is believed to drastically improve physical performance. In Fiji, it is used to prevent from Alzheimer’s disease.

Did you know?

Coffee beans are botanically not beans but the stone of stone fruits (drupes).

60% of the global Coffee production is represented by Coffea arabica, the rest is mostly Coffea robusta.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Custard Apple

Custard Apple

Annona reticulata (Annonaceae)

Characteristics

Small, deciduous fruit tree or shrub, 5-10 m tall. Leaves alternate, oblong, 10-20 cm long and 2-5 cm wide. Fragrant flowers. Fruits 8-16 cm, compound (made of several pollinated flowers, like a pineapple), yellow to brownish when ripe.

Distribution

Native to Central America, now widespread in the tropics between 0 and 1500 m.

Natural Medical Properties

Vitamin C in the fruit is believed to help to dilate blood vessels in case of high cholesterol and high blood pressure. The presence of vitamin B6 in the fruit is believed to help to control fat deposits near the heart, further preventing heart related issues.

Did you know?

Custard apple can be eaten raw as a fresh fruit. It is considered not as delicious as the closely related “Sugar apple” (Annona squamosa) or “Cherimoya” (Annona cherimola).

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Common Guava

Common Guava

Psidium guajava (Myrtaceae)

Characteristics

Small trees, up to 13 m tall. Bark brown-gray, smooth, peeling in strips. Leaf blade elliptic, 6-12cm long, leathery. Fruit (berry) 5-10 cm long, light yellow with a pink, granular flesh. Edible. Numerous very hard seeds (3 mm long).

Distribution

Native to Central and South America. Cultivated throughout the tropics.

Natural Medical Properties

The juice of the squeezed fruits is used for maintaining healthy skin. The leaves are chewed to prevent diarrhea.

Did you know?

“Common Guava” is related (same family) to Eucalyptus (Eucalyptus sp.). You can easily tell from the peeling bark. Guavas are of special interest to home growers in subtropical areas as one of the few tropical fruits that can grow to fruiting size in pots indoors.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species

Red Malaysian Guava

Red Malaysian Guava

Psidium guajava ‘Red Malaysian’ (Myrtaceae)

Characteristics

Guava (Psidium guajava) in general is a small tree, up to 13 m tall. Bark brown-gray, smooth, peeling in strips. Leaf blade elliptic, 6-12cm long, leathery. Fruit (berry) 5-10 cm long, light yellow with a pink, granular flesh. Edible. Numerous very hard seeds (3 mm long).

The “Red Malaysian Guava” variety has red fruits, fluffy pink flowers, and reddish-purple leaves. It produces some of the largest Guava fruits.

Distribution

Originally domesticated in the Philippines, spreading to the rest of the Island South East Asia and Eastward to Oceania including Melanesia and Polynesia.

Natural Medical Properties

The juice of the squeezed fruits is used for maintaining healthy skin. The leaves are chewed to prevent diarrhea.

Did you know?

Guavas in general are rich in Vitamin A and C. In fact, they have more vitamin C than oranges.

Further reading:

Literature

World Flora Online
WorldChecklist of Selected Plant Families
A working list of all plant species