Solanum pyracanthos, also known as the porcupine tomato, is an evergreen shrub native to tropical Madagascar.

[2] The plant contains toxic tropane alkaloids in its leaves, stem and fruit and therefore should be considered dangerous to humans.

S. pyracanthos is perhaps most distinguished by a profusion of strong, straight fluorescent orange thorns which occupy the stems and leaves of the plant, giving it a forbidding appearance.

Sources give the normal height of the shrub at 1–5 ft (0.30–1.52 m), although ornamental growers have reported taller growth.

The pinnately lobed leaves are 6–21 cm long and the plant blooms year round with clusters of small, star-shaped violet inflorescences, followed by marble-sized greenish-yellow fruit.