My Cat came in earlier and she had two of these things stuck to the fur under her chin, and one I later found on her tail. They're green balls with white fur kinda stuff all over them. I just about shit myself thinking it was rat poison, but after investigating online, people are saying they're a form of plant seed? Goosegrass, aka Sticky Willies, supposedly. But just for the sake of my anxiety, could I get confirmation on this?