• See Beggar`s ticks.
(Bidens) This group consists of hardy perennials and annuals, commonly called Bur Marigolds. These plants belong to the Daisy family, Compositae, and are found wild in southern U.S., Mexico and Guatemala. They grow from 1 to 3 feet high, with a 12 inch or so spread. B. ferulifolia is a perennial that forms clumps of divided, fern-like, green leaves...
Bur' mar'i·gold See Beggar's ticks . 
[n] - any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing
burr marigold noun any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing
any of various composite plants of the genus Bidens, esp. those having conspicuous yellow flowers.