Learn to distinguish your ash from your sassafras in this arboreal memory game. Place the cards face down and see if you can remember where the matching pairs are located. Collect more pairs than your opponent to win With common UK and US trees included as well as interesting trees from around the world, this fun and educational game is an ideal gift that will appeal to nature lovers everywhere. The game features interesting facts about the trees, written by the Head of the Arboretum at the Royal Botanic Gardens at Kew.