Life Behind the Museum – Homage to Butterfly Needles – Andrei Sourakov | Lepidoptera Collections Coordinator https://www.floridamuseum.ufl.edu/andrei-sourakov/activities/homage-to-bidens/
Some call it “The Spanish Needle,� which, I suppose, invokes thoughts of pain and the Spanish Inquisition at the same time. Other negative epithets include “beggarticks.� Finally, a slightly more enlightened public calls it “butterfly needles� which acknowledges the positive aspect, albeit skeptical
I propose a simple solution: mow it after it goes to seed.