I always used that other name too, just because it was the only thing I knew to call them. If you call them "tussocks", people just say, "huh"?
I'm more comfortable with "hippy-heads" than the standard term.
For those of you who haven't had the pleasure, these things are little grass topped hummocks about the size of a human head and spaced 6-8" apart. Some areas, like SW Alaska have thousands of square miles of these little ankle busters which can't really be appreciated until you are packing 80 pounds of meat over them for miles at a time.
The Bears and Bear Maulings Page: members.xoom.com/keithrogan