Bidens alba
 Bidens alba which belongs to the family Asteraceae is most commonly known as shepherd's needles beggarticks Spanish needles or butterfly needles. Bidens means two- toothed describing the two projections found at the top of the seeds and alba refers to the white ray florets. This plant is found in tropical and subtropical regions of North America Asia South America and Africa situated in gardens road sides farm fields and disturbed sites. B.