Pinus mugo 'Golden Mound' - the name says it all, a dwarf selection of mugo pine with irregular-globose structure and longer-than-typical needles that turn gold in winter in colder climates. After 10 years of growth, a mature specimen will measure 28 inches (40 cm) tall and wide, an annual growth rate of 2 to 3 inches (5 - 7.5 cm).
This cultivar is of uncertain origin. Derek Spicer claims in the RHS Encyclopedia of Conifer that it was first listed in 2005 by UK's Gordon Haddow, presumably in a Kenwith Nursery catalog.