Strophanthus hispidus

Strophanthus hispidus is a perennial woody climber belonging to the Apocynaceae family. This species is globally recognized for its significant pharmaceutical value, primarily serving as a natural source of cardiac glycosides, which are essential for treating various heart conditions in clinical medicine.

The plant originates from the tropical regions of West and Central Africa. It is widely distributed across forests and savannas, thriving in environments characterized by high humidity and consistent tropical temperatures. The plant is historically significant in local African medicine and later became an important crop for pharmaceutical raw materials.

Botanically, Strophanthus hispidus is distinguished by its hairy, opposite leaves and unique flowers, which feature long, tail-like corolla lobes. The fruit consists of two follicles that contain numerous seeds, which are the main focus of industrial harvesting. The plant requires a supportive structure, such as a trellis or tree, to reach its full development as a liana.

In terms of agricultural requirements, the species demands deep, fertile, and well-draining soils. It is highly sensitive to cold temperatures and requires a frost-free environment to survive. Proper water management is essential; while the plant loves humidity, stagnant water around the roots can lead to lethal fungal infections.

The main commercial application of the crop is the extraction of strophanthin from the seeds. Given the plant's high toxicity, cultivation must be handled with specialized equipment and safety protocols. Common pests include scale insects and various tropical mites, which can be managed through sustainable integrated pest management practices.

• Requires tropical climate conditions.
• Needs sturdy support structures.
• Seeds are the primary commercial part.
• Highly toxic, requires careful handling.