Skip to main content

Marvel of Peru (Mirabilis jalapa)

Marvel of Peru or four o'clock flower (Mirabilis jalapa) is a plant species in the Nyctaginaceae, herbaceous perennial, 20-80 cm high, thick stem, quadrangular with many branches and rooted in knots and postures often flat, tubers blackish brown with a white filling and elongated round shape with a size of 7–9 cm and 2–5 cm in diameter

M. jalapa has blackish brown tubers, white inside, elongated round shape, 7-9 cm long and 2-5 cm in diameter. Leaves are heart-shaped, green, 2-11 cm long and 1-7 cm wide. Leaf base rounded, tapered tip and flat edge. Leaf stalks are 1-6 cm long.

Dlium Marvel of Peru (Mirabilis jalapa)


The flowers are trumpet-shaped and come in many colors including red, white and yellow. Single seeded fruit, round, hard, wrinkled, yellow-green when young and black when ripe. Fruit can be made as a powder.

It is called the four o'clock flower because it usually blooms at four o'clock in the afternoon due to light stimulation or photonasty. This plant is included in the Dicotyledones class because it has two pieces of seeds, petals with multiples of 4-5 and finger veins.



The flower contains eight betaxanthins (indicaxanthin, vulgaxanthin-I, miraxanthin-I, II, III, IV, V and VI). The root contains rotenoid (mirabijalone A, B, C and D, 9-O-methyl-4-hydroxyboeravinone B, boeravinone C and boeravinone F, and 1,2,3,4-tetrahydro-1-methylisoquinoline-7,8-diol ). The seeds contain fatty acids (8-hydroxyoctadeca-cis-11,14-dienoic acid). The methanol extract produces β-sitosterol, stigmasterol, ursolic acid, oleanolic acid and brassicasterol.



The plant extract has antimicrobial activity against Candida albicans and moderate activity as an inhibitor of multidrug-resistant Staphylococcus aureus.

Flowers are processed into fresh drinks. The content of betaxanthis, fatty acid substances and oil acid substances can be used as drugs to improve blood circulation and diuretics. Plants are also used to relieve tonsillitis, sore throat, coughing up blood, cancer, kidney stones, gallstones and diabetes, dysentery, infected wounds, bee stings and scorpions.

The leaves are used to reduce inflammation, treat abscesses and treat wounds. The seeds are considered toxic but can be powdered as a cosmetic and dye. The dried flower powder is used to treat headaches and the root decoction is used to wash wounds and treat skin conditions such as leprosy. The juice extracted from the flowers is used for herpes lesions and earaches. The juice extracted from the root is used to treat earaches, diarrhoea, dysentery, syphilis, liver infections and as a laxative.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Caryophyllales
Family: Nyctaginaceae
Genus: Mirabilis
Species: Mirabilis jalapa
Variety: Mirabilis jalapa var. jalapa, Mirabilis jalapa var. oaxacana

Popular Posts

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...

Javan mocca or Javan slender caesar (Amanita javanica)

OPINION - Javan mocca or Javan slender caesar ( Amanita javanica ) is a mysterious fungus species and has been enigmatic since it was first reported by Boedijn in 1951 and after that no explanation or reporting of specimens is believed to be the same as expected. Boedijn (1951) described A. javanica which grew on Java island as having the characteristics covered in the Amanita genus. Corner and Bas in 1962 tried to describe Javan mocca and all species in Amanita based on specimens in Singapore. Over time some reports say that they have found A. javanica specimens in other Southeast Asia including also China, Japan, India and Nepal. But there is no definitive knowledge and many doubt whether the specimen is the same as described by Boedijn (1951). I was fortunate to have seen this species one afternoon and soon I took out a camera for some shots. In fact, I've only met this mushroom species once. Javan mocca is an endangered species and I have never seen in my experience in...

Lady Susan's orchid (Pecteilis susannae)

Susanna's egret flower or Lady Susan's orchid ( Pecteilis susannae ) is a plant species in the Orchidaceae, a large to giant terrestrial orchid, growing upright, white flowers and large in karst to limestone landscapes and flowering December-January. P. susannae has an erect, thick, leafy stem with a basal sheath and is oval in shape with a pointed tip and has no stalk. Large flowers, stalks and ovaries 4-6 cm, shallow wings and hairless. Dorsal sepals erect, ovate to globose, 2.5-3 x 2-2.8 cm, blunt end rounded. Lateral sepals spread, broadly ovoid, slightly oblique, 2.5-4 x 1.2-2.2 cm, usually slightly longer than the dorsal sepals and blunt apex. Calyx linear lance-shaped, 7-12 x 2.5 mm, lip irregularly ovate and 2.5-4.0 x 2.5-4.4 cm. Lateral lobes broad, subflabellate, 1.6-2.2 x 1.8-2.4 cm, entire lateral margin, apical margins frayed torn. Mid-lobe linear-oblong, 18-30 x 4-6 mm, moderately fleshy and intact. Straight to gradually curved forward, 6-13 cm x 3-5 mm and poi...