Bidens connata, also known as the purple-stemmed beggarticks, is a common weed found along roadsides, in fields, and even in gardens. Its yellow flowers and prickly seeds can be a nuisance to gardeners and farmers alike. However, there are a variety of synonyms that refer to this plant. Some of these include beggar-ticks, bur marigold, stick-tight, devil's bootjack, and needle-grass. These various names reflect the plant's spiky nature and its tendency to cling to clothing and animals. Regardless of the name, it is important to properly identify the plant in order to effectively control its spread.