Field Bindweed (Convolvulus arvensis)
Yet another naturalsied plant that is native to Europe and Asia. It is a climbing or creeping herbaceous perennial plant growing to 0.5–2 m high. Spreading around here amongst the close-mown grass in Fritz Park.
Although it produces attractive flowers, it is often unwelcome in gardens as a nuisance weed due to its rapid growth and choking of cultivated plants. It was most likely introduced into North America as a contaminant in crop seed as early as 1739, as an invasive species. Plants typically inhabit roadsides, grasslands and also along streams. Its dense mats invade agricultural fields and reduce crop yields; it is estimated that crop losses due to this plant in the United States exceeded US$377 million in the year 1998 alone. Contains several toxic alkaloids, including pseudotropine, and lesser amounts of tropine, tropinone, and meso-cuscohygrine.