Noun: tickseed sunflower
- North American bur marigold with large flowers
"Tickseed sunflowers attracted numerous pollinators";
- Bidens coronata, Bidens trichosperma
Derived forms: tickseed sunflowers
Type of: beggar's-ticks, beggar-ticks, bur marigold, burr marigold, stickseed, sticktight