Hi & welcome!
If it's that one little plant, you should be able to pull it out, possible all at once, maybe in chunks. I'm extremely sensitive/allergic to that stuff so I do that by putting 3 plastic bags ('cuz 2 just doesn't seem safe enough) over my hand and up my arm, holding the handle parts with my other hand. Pull the plant with the bagged hand and use the other hand to pull the bags over the plant. Dispose in trash, not compost or burn pile, as said above. (And, if you're like me, then you'll run to the shower, in a panic, although you know you didn't touch it.)
