Hedlundia pseudomeinichii

Hedlundia pseudomeinichii, known as false rowan and Catacol whitebeam, is a rare species of tree endemic to the Isle of Arran in south-western Scotland. It is believed to have arisen as a hybrid of the native European rowan (Sorbus aucuparia) and the cut-leaved whitebeam (Hedlundia pseudofennica) which is in turn a rowan/Arran whitebeam (Hedlundia arranensis) hybrid. Until 2020, only one living specimens of the Catacol whitebeam was known, at the time making it the rarest tree not only in Scotland, but joint rarest in the world with Wood's cycad. Another was recorded as a sapling, but is believed to have been destroyed by deer. A seedling and grafted plants have also been grown in Edinburgh. The latest evaluation by IUCN failed to find one of the two trees found, so they state in the red list citation for the species that only one tree is left. During September 2020 a second tree was discovered and confirmed by Dr Ashley Robertson as a new location for the taxa, rather than the redisco......read more on Wikipedia.