Plant cartoons care of the Comic Strip Library. Published between 1913 and 1944 Krazy Kat was an American newspaper comic strip by cartoonist George Herriman (1880–1944). Supplying off-beat gentle humour it coined the well known phrase “Krazy Kat”. These works are now in the Public Domain both in the US and in the UK.
Note: The Slippery Elm or Ulmus rubra is a species of elm native to eastern North America.