Skip to main content

Golden trumpet (Allamanda cathartica)

Dlium Golden trumpet (Allamanda cathartica)

Allamanda or golden trumpet (Allamanda cathartica) is a species of plant in Apocynaceae, evergreen, woody shrub, upright, up to 2 meters high, old stems are brown due to wood formation and young shoots are green.

The leaves have pointed tips, rough surfaces, 6-23 cm long and gathered in 3-4 strands. The flowers are yellow and shaped like trumpets, 9 cm long and 5-7.5 cm in diameter.

This species grows around rivers or open areas that are exposed to lots of sunlight with sufficient rain and high humidity throughout the year. This plant is unable to grow in saline or too alkaline soil and cannot withstand low temperatures.

A. cathartica grows well and produces flowers in full sun intensity without obstruction. This species grows well in sandy soil, rich in organic matter and well aerated. The right climate for growth is a tropical climate. The native habitat is at an elevation of 0-700 meters, rainfall 1000-2800 mm/year. Flowers grow year-round in many habitats, propagating by seed and stem cuttings. Some hybrid varieties have difficulty producing seed capsules.



Flowers can be used as a laxative. The sap has antibacterial properties. Flowers have antibiotic properties against Staphylococcus bacteria. Flowers are also commonly used as a medicine to prevent complications of malaria and spleen swelling. Roots are used to prevent jaundice.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Gentianales
Family: Apocynaceae
Subfamily: Rauvolfioideae
Tribe: Plumerieae
Subtribe: Allamandinae
Genus: Allamanda
Species: Allamanda cathartica

Popular Posts

Cockspur coral tree (Erythrina crista-galli)

Velvet coral tree or cockspur coral tree ( Erythrina crista-galli ) is a species of plant in the Fabaceae family. It is a small tree, 5-8 meters tall, with a trunk circumference of about 50 cm, irregular branches, light wood, and fissured, soft, and light brown bark. The taproot is white. The leaves are ovate, with three strands, dark green and glossy on the upper surface, and pale green on the underside. The central lobe is up to 17 cm long and up to 11 cm wide. The left and right lobes are up to 15 cm long and up to 10 cm wide. The flowers are red, arranged in racemes, at the apex, pentameric, complete, and bilaterally symmetrical. The flowers are up to 6 cm long and 4 cm wide. The pods are long, containing about 8 seeds, green when young and turning brown as they mature. The seeds are ovate, flat, and brown. It grows well in lowlands up to an elevation of 1,500 meters, with an annual rainfall of 800-1,500 mm/year, and a temperature of 20-32°C. It thrives in well-drained soils, but...

Pink trumpet tree (Tabebuia heterophylla)

Pink trumpet tree ( Tabebuia heterophylla ) is a species of plant in the Bignoniaceae family, growing 6–9 meters tall with a cylindrical trunk and brown bark that is often linearly fissured. The leaves are opposite, compound, with five or fewer minor leaflets. T. heterophylla has striking bright red flowers, tubular, five-lobed, and 5–7.5 cm long. The fruit is a cylindrical pod, up to 20 cm long and up to 1 cm wide. The pod stalk is up to 3 cm long. The pod splits along two lines to release numerous thin, light brown seeds, 0.5–2.5 cm long with two white wings. This species is often used as a street tree and shade tree for residential properties. Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Lamiales Family: Bignoniaceae Genus: Tabebuia Species: Tabebuia heterophylla

Tanglehead (Heteropogon contortus)

Tanglehead ( Heteropogon contortus ) is a species of Poaceae, an erect grass, up to 65 cm tall, with leaves up to 13 cm long and 0.5 cm wide. The inflorescence is at the top and hairy. The tip is black. This plant forms dense colonies in forests, agricultural lands, roadsides, and abandoned areas. TAXON : Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Liliopsida Order: Poales Family: Poaceae Subfamily: Panicoideae Tribe: Andropogoneae Subtribe: Anthistiriinae Genus: Heteropogon Pers. in Syn. Pl. 2: 533 (1807) Species: Heteropogon contortus (L.) P.Beauv. in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15[bis]. 2: 836 (1817) HOMOTYPIC SYNONYMS : Andropogon contortus L. in Sp. Pl.: 1045 (1753) Heteropogon contortus var. hirtus Hack. in C.F.P.von Martius & auct. suc. (eds.), Fl. Bras. 2(3): 267 (1883) Heteropogon hirtus Pers. (1807) Holcus contortus (L.) Stuck. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 48 (1904) Sorghum contortum (L.) Kuntze in Revis. Gen. ...