Photo: Bidens cernua.

Flowering plant. Helsinki, Finland. Wild. 2001-08-01.
Bidens cernua L. Engl.: nodding bur-marigold, bur-marigold, nodding beggar-ticks, stick-tight. Deu.: Nickender Zweizahn. Suom.: nuokkurusokki. Sven.: nickskära, gulskära. Fran.: bident penché. Ital.: forbicina intera. Dutch: knikkend tandzaad. Bot. syn.: Bidens glaucescens Greene
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Photo: Bidens cernua.