Shepherd’s Needles

This small, white, daisy-like flower with white petals and a yellow center made out of smaller, yellow flowers is Bidens alba, a fast-growing wildflower also known as shepherd’s needles, beggarticks, Spanish needles or butterfly needles. Bidens means two-toothed, and describes the twin projections at the top of the plant’s thin, elongated, black, stick-to-clothing seeds. This…