Black Jack: Origins and Uses of a Versatile Wild Plant

A Global Weed with Medicinal Roots

In the realm of plants, Bidens pilosa, commonly known as Black Jack or Spanish Needles, stands out as an intriguing species with a multifaceted story. This annual plant, a member of the daisy family, has captured attention worldwide for its medicinal properties, invasive nature, and global distribution.

Origins and Distribution

Native to South America, Bidens pilosa has spread far and wide, becoming a prevalent herb in temperate regions globally. Its botanical journey took it to Africa, Asia, and even the islands of the Pacific Ocean.