Pongamia pinnata, also known as Pangaro, is a medium-sized, semi-evergreen, leguminous tree native to India and other parts of Asia. It's known for its fast growth, drought tolerance, and nitrogen-fixing capabilities. It has compound leaves, fragrant, pea-like flowers (white or pink), and produces oil-rich seeds used for biofuel and medicinal purposes. 

Key characteristics of Pongamia pinnata:

Size and Shape: Reaches heights of 30-40 feet with a spreading crown, according to Ask IFAS - Powered by EDIS. 

Leaves: Compound leaves with several pairs of leaflets, alternate and pinnately arranged, according to the State Medicinal Plants Board Kerala. 

Flowers: Clusters of fragrant, pea-like flowers, typically white or pink. 

Fruits and Seeds: Produces flattened, woody seed pods containing oval-shaped seeds rich in oil. 

Bark: Grayish-brown and rough, with deep furrows as the tree matures. 

Growth: Fast-growing, adaptable to various climates and soil types, including marginal lands. 

Habitat: Thrives in tropical and subtropical regions, commonly found near rivers, coastal areas, and in lowland forests. 

Other Names: Also known as Pongam, Indian beech, Karanja, and Millettia pinnata. 

Uses and Significance:

Biofuel: The seed oil is a potential source of biofuel. 

Medicinal: Used in traditional medicine for skin conditions, ulcers, and other ailments, according to Wikipedia. 

Ornamental: Planted as a roadside and shade tree due to its attractive flowers. 

Soil Improvement: Nitrogen-fixing capabilities and dense root system help improve soil health. 

Fodder: The leaves and seeds can be used as animal feed.