1. Any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing
   "The hiker's socks were covered in beggar-ticks after walking through the field";
   - bur marigold, burr marigold, beggar's-ticks, sticktight, stickseed
    
2. The seed of bur marigolds
   "beggar-ticks clung to his hiking socks";
   - Spanish needles

Type of: bur, burr, subshrub, suffrutex

Part of: Bidens, genus Bidens

Encyclopedia: Beggar-ticks