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|Noun||1.||burr marigold - any of several plants of the genus Bidens having yellow flowers and prickly fruits that cling to fur and clothing|
Bidens coronata, Bidens trichosperma, tickseed sunflower - North American bur marigold with large flowers
Bidens tripartita, European beggar-ticks, trifid beggar-ticks, trifid bur marigold - bur marigold of temperate Eurasia
Bidens connata, swampy beggar-ticks - bur marigold of eastern and northern United States and Canada common in wet pastures and meadows