Overdoses of willow bark may cause skin rash, stomach inflammation/irritation, nausea, vomiting, kidney inflammation, and tinnitus (ringing in the ears).
South Dakota, a state in the north central continental United States, is known as the Mount Rushmore State. This stems from the presence of the Mount Rushmore National Memorial near the city of Keystone in western South Dakota.
Since that time, North Dakota has been listed first alphabetically, as the 39th US state, and South Dakota listed as the 40th US State.