Ardusi, also known as Vasaka or Malabar Nut, is a medicinal shrub known for its respiratory health benefits. It's a dense, evergreen shrub with large, lance-shaped leaves and white flowers. The leaves are a key component in traditional Ayurvedic medicine, particularly for treating coughs, colds, and asthma. 

Key Characteristics:

Appearance: A dense, evergreen shrub, typically growing to a height of 2 to 3 meters. 

Leaves: Large, lance-shaped, and glossy green. 

Flowers: White, often with purple tinges, arranged in dense, axillary spikes. 

Fruit: Small, capsule-like fruits containing seeds. 

Habitat: Native to the Indian subcontinent, found in plains and lower Himalayan regions. 

Medicinal Uses: Widely used in Ayurveda for respiratory ailments like coughs, colds, asthma, and bronchitis. 

Phytochemicals: Contains alkaloids (vasicine, vasicinone), flavonoids, tannins, and essential oils. 

Other Names: Also known as Adhatoda vasica, Adulsa, and Malabar Nut. 

In Ayurveda:

Ardusi is considered a valuable herb for respiratory health, acting as a bronchodilator and expectorant. 

It is used to treat various respiratory conditions, including asthma, bronchitis, and coughs. 

Traditional uses also include managing bleeding disorders and reducing inflammation.