Sorbus pseudomeinichii Sorbus pseudomeinichii 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
Sorbus reducta Garden Merit. Sorbus reducta Sorbus reducta (铺地花楸), the dwarf Chinese mountain ash, is a species of flowering plant in the family Rosaceae, native to western China (South West Sichuan and North West Yunnan}. Growing to tall by wide, it is a dense deciduous spreading shrub. Each leaf, long, has up to 15 leaflets which turn to brilliant shades of red in the autumn (fall). White flowers in spring are followed by red or pink, and then white berries in autumn. The Latin specific epithet "reducta" means "dwarf", referring to its compact habit. This plant has gained the Royal Horticultural Society's