Yes its a rubbery thing with a metal base washer about 1.5" high. It is a press fit onto the steerer then tightened in the usual threadless manner. You can see it in the linked picture. Its becoming quite a common style on hybrids with integrated headsets, mainly because it is cheap and easy to assemble.
My other freezeup was an Alfine hub gear. Below -10C the grease gets too solid to switch gears, Fortunately it was stuck in 3 which is a middling one. I will have to switch to oil lube if these cold winters continue.