1. (noun) any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

• beggar's-ticks
• beggar-ticks
• bur marigold
• burr marigold

2. (noun) parasitic on especially the heads of chickens

• echidnophaga gallinacea
• sticktight flea

1. (noun) any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

• bidens
• genus bidens

2. (noun) parasitic on especially the heads of chickens

• echidnophaga
• genus echidnophaga

1. (noun) any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

• bidens bipinnata
• spanish needles
• bidens connata
• swampy beggar-ticks
• bidens coronata
• bidens trichosperma
• tickseed sunflower
• bidens tripartita
• european beggar-ticks
• trifid beggar-ticks
• trifid bur marigold

1. (noun) any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing

• subshrub
• suffrutex

2. (noun) parasitic on especially the heads of chickens

• flea