Sorbus pseudomeinichii, known as false rowan and Catacol whitebeam, is a rare tree endemic to the Isle of Arran in south west Scotland. It is believed to have arisen as a hybrid of the native rowan (Sorbus aucuparia) and the cut-leaved whitebeam (Sorbus pseudofennica) which is in turn a rowan/Arran whitebeam (Sorbus arranensis) hybrid. Only two specimens of the Catacol whitebeam are known, making it the rarest tree in Scotland and also the United Kingdom. A third was recorded as a sapling but is believed to have been destroyed by deer. A seedling has also been grown in Edinburgh.