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Can you solve the tree puzzle?


  • Click a cell on the crossword grid, or click a clue

  • Click twice on a cell to toggle between across and down

  • The active cell is highlighted in blue

  • Start typing in the word

  • Hit enter when you are done typing in the word

  • The word will turn green or red if you got it right or wrong

  • You can use the tab and shift-tab keys to move around the crossword, and the arrow keys


Katie Holten’s Irish Tree Alphabet allows us to write in Irish Trees. Her art explores language and the environment to highlight the importance of our words and the stories that we tell.


Katie has made drawings of trees, existing natives as well as non-native trees that are now calling Ireland home due to the changing climate. Each tree replaces a letter in the Latin alphabet; A = Ailm (Scots Pine), B = Beith (Birch), C = Coll (Hazel), etc. The result is a new Irish Tree Alphabet and font called Irish Trees. 


The project finds its roots in the Ogham alphabet, a medieval alphabet used primarily to write the early Irish language. Ogham's characters or letters were called feda "trees" or nin "forking branches" due to their shape.

Send a message using the Irish Tree Alphabet.

Try it out now!

Download the Irish Tree Alphabet Colouring Book

Now you know how trees are made...

Fred Schultz@fred035schultz

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