Allamanda blanchetii

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 # 05 Purple Almanda


Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Subfamily: Apocynoideae
Tribe: Plumerieae
Genus: Allamanda
Species: A. blanchetii

Scientific name: Allamanda blanchetii

Common names: Purple Allamanda, Purple Allamanda Bush

Habit: Allamanda blanchetii is a perennial flowering shrub that grows up to 2-3 meters in height. It has a woody stem and a sprawling growth habit, with a dense and bushy appearance.

Root: The root system of Allamanda blanchetii is fibrous and extensive, providing a strong anchor for the plant in the soil and aiding in water and nutrient uptake.

Stem: The stems of Allamanda blanchetii are woody and slightly woody, and are typically green or brown in color. The plant produces multiple stems that grow in a sprawling, bushy fashion.

Leaf: The leaves of Allamanda blanchetii are simple, ovate, and opposite, measuring approximately 10-15 cm in length. They are dark green in color and have a glossy, leathery texture. The edges of the leaves are smooth and slightly undulated, while the veins are prominent and run parallel to each other.

Flower: The flowers of Allamanda blanchetii are large, showy, and trumpet-shaped, measuring around 8-10 cm in diameter. They are borne singly or in small clusters at the ends of the branches, and have a distinctive fragrance.

Calyx: The calyx of Allamanda blanchetii is composed of 5 sepals, which are fused at the base and form a tube-like structure around the base of the corolla.

Corolla: The corolla of Allamanda blanchetii is composed of 5 petals that are fused together to form a long, tubular structure. The petals are a striking shade of purple, and have a yellow throat with maroon lines.

Androecium: The androecium of Allamanda blanchetii consists of 5 stamens, which are fused to the base of the corolla tube. Each stamen has a long, slender filament and a large, bilobed anther.

Gynoecium: The gynoecium of Allamanda blanchetii is composed of a single carpel, which is located at the base of the corolla tube. The ovary is superior, and contains numerous ovules on parietal placentation. The style is long and slender, and terminates in a small, capitate stigma.

Fruit: The fruit of Allamanda blanchetii is a long, narrow, cylindrical capsule that measures around 15-20 cm in length. It is green when immature, and turns brown and woody as it matures. The capsule contains numerous small seeds that are equipped with tufts of silky hairs, which aid in wind dispersal.

Floral formula: The floral formula for Allamanda blanchetii can be represented as:

K(5) C(5) A(5) G(1)

where:

K = calyx with 5 sepals
C = corolla with 5 petals
A = androecium with 5 stamens
G = gynoecium with 1 carpel

Caring: Allamanda blanchetii is a hardy and low-maintenance plant that thrives in warm, tropical climates. It requires full sun to partial shade and well-drained soil that is kept consistently moist. Regular pruning is recommended to promote bushier growth and more profuse flowering. Allamanda blanchetii is susceptible to some pests and diseases, such as spider mites and leaf spot, but can be treated with appropriate fungicides and insecticides.

Significance: Allamanda blanchetii is primarily grown as an ornamental plant for its striking flowers and attractive foliage. It is often used as a landscape plant, a hedge, or a container plant, and can be grown both indoors and outdoors. The plant is also sometimes used for medicinal purposes in traditional medicine, and has been studied for its potential anticancer and antioxidant properties.

Economical importance: Allamanda blanchetii does not have significant economic importance, as it is primarily grown as an ornamental plant and is not widely cultivated for commercial purposes. However, its beauty and ease of cultivation make it a popular plant for landscaping and garden design, and it can be a valuable addition to the horticultural industry.

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