Spanish needles refer to a type of plant native to tropical and subtropical regions, scientifically known as Bidens pilosa. Also commonly referred to as beggarticks, Spanish needles are herbaceous annual plants that belong to the Asteraceae family. They are known for their slender, straight stems that can grow up to 4 feet tall, topped with clusters of small yellow flowers. The plants have compound leaves that are divided into 3 to 5 narrow leaflets, with serrated edges.
The name "Spanish needles" originates from the sharp, needle-like bristles that cover the seeds of this plant. These bristles cling easily to clothing and animal fur, aiding in their dispersal. Spanish needles are known for their ability to grow in a wide range of habitats, including fields, roadsides, disturbed areas, and gardens, leading to their classification as an invasive species in some regions.
In traditional medicine, various parts of the Spanish needles plant, such as the leaves, flowers, and seeds, have been used for their medicinal properties. They are believed to possess anti-inflammatory, diuretic, and antimicrobial properties. Additionally, the plant has been used in the treatment of various ailments, including skin conditions, digestive disorders, respiratory issues, and urinary tract infections. However, the use of Spanish needles in traditional medicine should be approached with caution, as scientific studies on its safety and efficacy are limited.
