Family • Solanaceae - Datura arborea Linn. - ANGEL'S TRUMPET - Mu ben man tuo luo

Scientific names

Brugmansia arborea Steud.
Datura blanca Linn.
Datura arborea Linn.

Common names

Trompeta (Tag.)
Angel’s trumpet (Engl.)

Other vernacular names

CHINESE: Mu ben man tuo luo.
SPANISH: Floripondio, Reina de la noche, Borrachero.

Trompeta is a small tree or large shrub growing to a height of 3 meters or more. Leaves are simple, opposite, ovate-lanceolate, 13 to 18 centimeters long, 6 to 8 centimeters wide, with pointed tips, unequal, obtuse or rounded bases, with entire or hairy margins. Flowers are large and showy, about 20 centimeters long, creamy white, pendulous, and musk-like in odor. Calyx is tubular, entire and spathelike. Corolla tube is cylindrical with very big lobes.


Additional Sources and Suggested Readings

(1) Activity-directed Isolation of Spasmolytic (anti-cholinergic) Alkaloids from Brugmansia arborea (L.) Lagerheim / A Capasso et al / Summary Pharmaceutical Biology / 1997, Vol. 35, No. 1, Pages 43-48

(2) Headache Treatments By Native Peoples of the Ecuadorian Amazon: A Preliminary Cross-Disciplinary Assessment / Ethan Russo MD / Deparment of Neurology, Western Montana Clinic, Box 7609, 515 W.Front St., Missoula, MT 59807 (U.S.A.)

(3) Amino acid sequence of ferredoxin from Datura arborea / Yoshiki Mino / Phytochemistry, Volume 37, Issue 2, 1994, Pages 429-431

(4) Headache Treatments By Native Peoples of the Ecuadorian Amazon: A Preliminary Cross-Disciplinary Assessment / Ethan B. Russo, M.D. /

(5) Active Ingredients from Metabolite of Datura arborea Entophytic Fungi and Its Anti-dermal Pathogenic Fungi Activities / Zheng Yi et al / DOI:CNKI:SUN:AHNY.0.2011-03-028 / Journal of Anhui Agricultural Sciences, 2011-03


SOLANACEAE, Brugmansia arborea, 1198900898

– Recently introduced in the Philippines.
– Cultivated as an ornamental plant in Baguio.
– Occasional in the lowlands.
– Native of Peru and Chile.

– Leaves and seeds yield alkaloids with narcotic properties.
– Chief alkaloids found in datura are atropine, hyoscyamine, hyoscine (scopolamine) and meteloidine.
– Flowers, leaves, stems and roots contain scopolamine and some hyoscyamine.
– The roots have some atropine and a little hyoscyamine.
– Seeds contain scopolamine and hyoscyamine and a little scopolamine.
– The stem has much hyocyamine and a little scopolamine.
– The leaves contain scopolamine, 0.44% , and an alkaloid, floripondine.
– Flowers have yielded fats, resin acid, tannic acid, glucose, alkaloid, gummy principles, cellulose.

– Leaves and seeds yield alkaloids with narcotic properties.


Parts used and preparation

– In Peru, Chile, and other parts of South America, a poultice of leaves is applied externally to accelerate the suppuration of boils and to relieve pain.
– Plant used for belladonna if given in double or treble dosing.
– In Ayurveda, used for arthritis, ulcers, back pain, skin diseases, sciatica, dandruff.
– Used for rheumatism, worms, colds, fever, erisypelas, cramps, asthma, hemorrhoids.
– In the Ecuadorian Amazon, used as hallucinogenic; used by shamans for bewitching and curing. Also, the stems and branches, cut longitudinally are applied to the head or painful body part, bandaged to the area for 15 minutes.

Trompeta5Concerns/ Toxicity 
– Plant has been used as hallucinogen and intoxicant from the hyocyamine content.
– The chief alkaloids found in datura are atropine, hyoscyamine, hyoscine (scopolamine) and meteloidine. Poisoning can occur with overdose of any of the alkaloids. As little as 4 grams of leaf can be fatal to a child; alas, as the child’s curiosity is drawn to the plants large flowers and spiny seed capsules.
– Appearance of alkaloid toxicity can be within minutes to hours, depending on concentration, method of ingestion and dosing, manifesting as: extreme thirst, pupil dilatation, vision impairment and hallucinations. High temperature, flushed skin and palpitations may be observed. In non-fatal cases, signs and symptoms subside in 12 to 48 hours, although visual impairment and lethargy may persist for some time.

Study Findings
• Spasmolytic Alkaloids: Results showed dose-dependent reduction of electrical contractions of guinea-pig ileum and reduction of the electrical and the Ach-induced contractions of the ileum. Three active substances identified were tropane alkaloids – atropine, scopolamine and nor-hyoscine.
• Ferredoxin / Amino Acid Sequence: The D. arborea ferredoxin exhibited three or four differences in the amino acid sequence when compared with D stramonium and D metel. The result supports the idea propounded by Bernhardi and Safford that ‘Tree Datura” such as D arborea should be a section of the genus Datura and not a separate genus.
• Antiamoebic: Crude extract of leaves showed moderate antiamoebic activity at MIC of 125 ug/ml. The activity was not due to its alkaloid contents because atropine and scopolamine were inactive in vitro against E histolytica.
• Anti-Dermal Pathogenic Fungi Activity: Study of antibiotic activities of metabolite of entophytic fungi strain isolated from D. arborea isolated four compounds. One compound, a 5-butylpicolinic acid named fusaric acid, could inhibit the growth of Microsporum gypseum and Tricophyton gypseum.
• Aphrodisiac / Antioxidant: Study evaluated a root aqueous extract for aphrodisiac and antioxidant properties. Results showed better results with testosterone levels in blood of test animals. Antioxidant activity was confirmed by comparison with silymarin.