A twining plant with trumpet-shaped flowers, some kinds of which are invasive weeds (see also bindweed), while others, esp. morning glories, are cultivated for their bright flowers
Web Definitions:
any of numerous plants of the genus Convolvulus
Convolvulus is a genus of about 250 species of flowering plants in the bindweed family Convolvulaceae, with a cosmopolitan distribution. Common names include bindweed and morning glory, both names shared with other closely related genera.
is an ubiquitous weed, but arvensis is understood to contain alkaloids that are toxic.