AppearanceConvolvulus arvensis is a perennial vine. It is weak-stemmed and prostrate. Stems twine and can grow to 5 ft. (1.5 m) or longer. C. arvensis has deep, spreading roots and rhizomes. It is native to Africa, temperate and tropical Asia and Europe.Foliage Leaves are round to arrow-shaped, 1-2.25 in. (2.5-5.7 cm) long, and alternate.Flower Flowering occurs in the mid-summer, when white to pale pink, funnel-shaped flowers develop. Flowers are approximately 0.75-1 in. (1.9-2.5 cm) across and are subtended by small bracts.Fruit Fruit are light brown, rounded, and 0.13 in. (0.3 cm) wide. Each fruit contains two seeds.Ecological ThreatC. arvensis most likely was introduced in North America as a contaminant in crop seed as early as 1739. Plants typically inhabit roadsides and grasslands and live along streams.