The Limonia acidissima, also known as Wood Apple, is a deciduous tree native to India and parts of Southeast Asia. It's a spiny tree with dark green, leathery leaves that emit a slight citrus scent when crushed. The tree bears round or oval fruits with a hard, woody rind, and the flesh can be sweet or sour. 

Here's a more detailed description:

Appearance:

Tree: A slow-growing, erect tree, reaching up to 10 meters tall. 

Bark: Rough, furrowed, and scaly, with spines ranging from 2-5 cm long. 

Leaves: Pinnate, with 5-7 leaflets per leaf, dark green and leathery, often minutely toothed. 

Flowers: Small, dull-red or greenish, borne in panicles (clusters of small flowers). 

Fruit: Round or oval, with a hard, woody, brownish rind. The flesh is mealy, odorous, and can be acid or sweetish. 

Other Notable Features:

Spines: The tree has sharp, straight, axillary spines. 

Leaves: Alternate, dark green, leathery, and dotted with oil glands. 

Fruit: The fruit is known as "elephant apple" or "monkey fruit," and the rind is tough. 

Uses: The ripe fruit can be used for chutneys or jellies, and the tree has medicinal properties. 

Key Characteristics:

Deciduous: The tree sheds its leaves seasonally. 

Citrus Scent: The leaves have a slight lemon scent when crushed. 

Medicinal Properties: The tree is known for its medicinal uses, and various parts are used in traditional medicine.