An English near-threatened endemic species of about 2,300 known specimens.
Known on 46 sites north of Morecambe Bay in Lancashire and Cumbria, found near the coast on limestone cliffs and outcrops, such as at Scout Scar.
Syn. *Sorbus lancastriensis*. A sexual tetraploid, evolving from Grey-leaved Whitebeam (p. xxx).
Small (6m), often multi-stemmed from the base. Bark grey-brown. Buds sharply ovoid with long hairs. Leaves obovate, 4-8cm, unlobed, obtuse-tipped, dark green above, densely grey-white downy below, with 15-22 veins and serrate margins almost smooth in the basal quarter, on a 10-20mm petiole. Flowers white with elliptical petals in a dense 8cm inflorescence (May-June). Fruit a dumpy pome (10-13mm), wider than long, dark red with small basal white lenticels (September-October). Rock Whitebeam differs: narrower leaves, fewer veins.