My first encounter with Cotoneaster 'Tom Thumb' (syn. C. 'Little though some experts are now saying it's more likely a relative of C. adpressus or C. apiculatus.
clockmakers.info: Tom Thumb Cotoneaster - Cotoneaster adpressus - 4" Pot - True Dwarf: Hirt Gardens Cotoneaster: Garden & Outdoor.
ko-toe-nee-AS-ter a-pik-U-la-tus. Family: Rosaceae. Genus: Cotoneaster. Synonyms: 'Little Gem'. C. adpressus 'Tom Thumb'. C. adpressus 'Little Gem'. Type.